Main Super Nitro RS4 Page | Manual | Spec Sheet | Parts List | Building Tips | Racing Tips | Updates | Nitro FAQ
 |
Our
#1634 Carburetor provides a wider carb opening for increased airflow,
meaning faster acceleration and top speeds! |
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For
racing, our #72175 High Performance Air Filter is ideal |
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The
#72215 Gear Diff Adjustment Spring Set lets you fine-tune your differentials |
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Slow
down fast with the #A844 Fiber Brake Disk! It resists brake fade
and is perfect for racing |
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Our
adjustable #A885 Nitro Racing Clutch features a coil spring and
special compound to resist melting and smooth acceleration |
 |
The
#72170 Threaded Aluminum Shock Set looks great and lets you tune
your shocks with ease |
| Part | # | Description | Price |
| 914 | 1 | Nitro
Start-Up Set (120v) This Nitro Start-Up Set include HPI 20% Power Fuel, HPI Nitro Car Cleaner, a conveniently sized 250cc fuel bottle, rechargeable glow plug igniter with overnight wall charger, 4-way glow plug wrench, plus a spare glow plug and washer for a low price, all in one convenient package. |
$62.00 |
| 1634 | 1 | Carburetor
(SS) (Complete) Rotary carb, two needle adjustments, 5.5mm carb! Fits the 15FE and 12E engines. |
53.00 |
| 2012 | 1 |
Hump Battery Pack for Receiver (6v 1200mAh/Ni-MH) | 32.00 |
| 6273 | 1 | Foam Spacer
for Foam Bumper (8pcs) Eight self-sticking foam spacers to custom-fit your foam bumper to the body you use. Keeps the body in the correct shape at high speeds. Click here to see an example of the spacers on a car. Click here to see an example of the spacers fitted under a body. |
4.00 |
| 6277 | 1 |
Foam Bumper (Super Nitro RS4) Includes aluminum hardware for secure installation. Thick foam protects the body and chassis! |
8.00 |
| 9043 | 4 | Quick
Tire Holders (Gray) The easy and convenient way to organize your tires! Holds 4 touring car/Super/Mini tires or two truck/rear buggy tires. Spring-loaded retainers make it easy to attach tires and don't damage the axle holes. Tags let you record tire compound and insert type. 4 Quick Tire Holders included in each package. |
5.00 |
| 9044 | 4 | Quick
Tire Holders (Purple) See above for details |
5.00 |
| 9045 | 4 | Quick
Tire Holders (Red) See above for details |
5.00 |
| 9046 | 4 | Quick
Tire Holders (Blue) See above for details |
5.00 |
| 9047 | 4 | Quick
Tire Holders (Yellow) See above for details |
5.00 |
| 9062 | 1 | HPI Nitro
Car Cleaner Degrease your car or truck, and blast dirt and gunk off parts. Leaves no residue and evaporates quickly. Also useful for cleaning electric motors. |
6.00 |
| 9067 | 1 | HPI Fuel
Bottle Marked in 100 milliliter increments, holds .5 liters of fuel. Purple anodized fueling tip with rubber stopper and o-ring to seal leaks. Has the HPI Oval logo molded into it! |
15.00 |
| 9072 | 1 | Receiver
Protector Small (Orange) Fits all mini or micro-size receivers. Includes velcro tape for easy attachment and removal. Have an HPI sticker on them, and a dimple that can be cut out for an antenna hole. Protects against fuel spills, water and dirt. 42mm x 27mm x 23mm high, or 1" x 1.6" x 1.8" high |
5.00 |
| 9073 | 1 | Receiver
Protector Small (Black) See above for details |
5.00 |
| 9074 | 1 | Receiver
Protector Small (Purple) See above for details |
5.00 |
| 9075 | 1 | Receiver
Protector Large (Orange) Fits all standard-size receiver. Includes velcro tape for easy attachment and removal. Have an HPI sticker on them, and a dimple that can be cut out for an antenna hole. Protects against fuel spills, water and dirt. 45mm x 30mm x 30mm high, or 1.75" x 1.25" x 1.25" high |
5.00 |
| 9076 | 1 | Receiver
Protector Large (Black) See above for details |
5.00 |
| 9077 | 1 | Receiver
Protector Large (Purple) See above for details |
5.00 |
| 9084 | 1 | HPI
Curved Scissors Cuts through R/C polycarbonate bodies easily, and is curved for extra convenience. |
12.00 |
| 72016 | 1 |
Stainless Steel Hinge Pin Set (Super Nitro RS4) Provides smoother suspension action than stock screw pins, and are much more durable. |
17.00 |
| 72017 | 1 | Aluminum
Front Bulkhead Set (Purple) |
40.00 |
| 72018 | 1 | Aluminum
Rear Bulkhead Set (Purple) Fits on nearly all RS4 series cars, including electric RS4 MT, Mini cars and all Nitro cars. All screws necessary for installation are included. AVAILABLE EXCLUSIVELY AT BUY HPI! |
40.00 |
| 72031 | 2 | Aluminum
Front Hub Carriers (Purple / fits Pro/Sport 2, RTR, Nitro 2, Racer
2, Super) Strengthens the front end of your car significantly. Fits all kits with the Pro 2 Front Suspension. Includes set screws for hinge pins and screws/nuts for camber links. AVAILABLE EXCLUSIVELY AT BUY HPI! |
33.00 |
| 72036 | 4 | Aluminum
Hex Hub Clamp Type (6mm / 4pcs) Purple anodized for great looks, these are stronger than plastic hex hubs, and won't fall off your axles or get stuck in your wheels! 6mm wide: Super Nitro RS4 and RS4 Mini owners will need to use 1mm spacers to maintain the same wheel offset. AVAILABLE EXCLUSIVELY AT BUY HPI! |
20.00 |
| 72040 | 2 | Aluminum
Rear Hub 1.5 Degree Provides more steering for all RS4 series cars than stock 2 degree hubs. AVAILABLE EXCLUSIVELY AT BUY HPI! |
35.00 |
| 72041 | 2 | Aluminum
Rear Hub 2 Degree Replaces stock 2 degree uprights with stronger aluminum parts. Features an extra tuning hole for the outer camber link location.) AVAILABLE EXCLUSIVELY AT BUY HPI! |
35.00 |
| 72045 | 1 | Aluminum
Suspension Mount 2 Degrees Lower (Purple / RS4 Pro 2) Available with 2 degrees of kick-up only. Use with #72021 on RS4 Pro 2 or use the included washers to add kick-up to upper suspension mounts. Will not fit RS4 MT, Nitro RS4 MT, RS4 Rally. AVAILABLE EXCLUSIVELY AT BUY HPI! |
28.00 |
| 72060 | 1 | Aluminum
Pulley Mount (Purple / Nitro RS4) Strengthens the drivetrain of your Nitro car by replacing the front gear shaft plastic mounts. Combine with #A907, #72061 and #72068 for a super-strong drivetrain! All hardware necessary is included. AVAILABLE EXCLUSIVELY AT BUY HPI! |
28.00 |
| 72061 | 1 | Aluminum
Brake Block (Purple / Nitro RS4) Stronger and stiffer than the stock nylon brake block, this part also matches our other available purple anodized parts!See it installed on a car by clicking here. AVAILABLE EXCLUSIVELY AT BUY HPI! |
28.00 |
| 72062 | 6 | Shock
Spacers 0.3mm clear / 0.5mm smoke (6 pcs ea) Use this thin shock spacers to accurately set the ride height of your car! |
4.00 |
| 72063 | 6 | Cone Washer
3.0mm/4-40 Aluminum (Purple / 6 pcs) Brighten up the look of your car with these great-looking cone washers! Although meant for use with flat head screws, you can use these as spacers under button head screws also. |
5.00 |
| 72065 | 2 | Aluminum
Upright Set Take out any steering slop in your steering! Marked #1 and #2, make sure you install each arm on the correct side.See them installed on a car by clicking here. AVAILABLE EXCLUSIVELY AT BUY HPI! |
32.00 |
| 72068 | 1 | Aluminum
Gear Shaft Mount (Purple / Nitro RS4) Stronger and stiffer than the stock nylon gear shaft mount, this part also matches our other available purple anodized parts! See it installed on a car by clicking here. AVAILABLE EXCLUSIVELY AT BUY HPI! |
28.00 |
| 72085 | 1 | Aluminum
Upper Arm Mount Front (Super Nitro RS4) Stronger and stiffer than the stock nylon gear shaft mount, this part also matches our other available purple anodized parts! AVAILABLE EXCLUSIVELY AT BUY HPI! |
30.00 |
| 72088 | 1 | Aluminum
Upper Arm Mounts Rear (Super Nitro RS4) Stronger and stiffer than the stock nylon gear shaft mount, this part also matches our other available purple anodized parts! AVAILABLE EXCLUSIVELY AT BUY HPI! |
30.00 |
| 72110 | 2 | Silicone
Exhaust Coupling (Purple / 2 pcs) Two purple molded silicone exhaust couplings are included, plus four black nylon zip ties - use two zip ties per exhaust coupling to attach to header and tuned pipe. |
5.00 |
| 72175 | 1 | High
Performance Air Cleaner High flow, super duty air cleaner for HPI engines. Will not fit the Nitro Star Pro engines. Bent and straight neck with zip ties included. |
16.00 |
| 72422 | 1 | Aluminum
Spring Perch (Purple/4 pcs) Dress up your car with these lightweight replacement shock parts! |
16.00 |
| 72515 | 1 | Nitro
Handling Kit (Rollcenter Plate) Increase the traction and handling capabilities of your Nitro sedan or Super car. This set includes two sets of purple anodized 1.5mm thick aluminum plates, plus longer machine and self-tapping screws to install on any HPI Nitro sedan or Super car, whether you have the stock plastic or the new optional aluminum parts installed. Aluminum washers are included for racers who have the graphite upper deck installed. Set screws are included that allow racers to adjust tweak and suspension downtravel. Try running the car with one plate (1.5mm) installed first, then experiment with two plates (3mm total). |
25.00 |
| 72516 | 1 | 2
Speed Transmission Heavy Duty (Nitro RS4) Uses the heavy duty first gear adapter and new first speed gears so high-powered Nitro engines will not damage the gear or one-way bearing. Perfect for our Nitro Star Pro engines! Gears and clutchbells are interchangeable for different ratios, and this will fit the Super Nitro for high-speed runs! Will not fit the Nitro RS4 3 kits! See it installed on a car by clicking here. |
80.00 |
| 72525 | 1 | Racing Fuel Tank Improved fuel tube routing with great looks! |
15.00 |
| 73002 | 1 | Front
Shock Tower (Graphite / Super Nitro RS4) 3mm thick graphite is super strong to resist damage! Four shock mounting positions and two shock tower mounting positions provided. |
20.00 |
| 73003 | 1 | Rear
Shock Tower (Graphite / Super Nitro RS4) 3mm thick graphite is super strong to resist damage! Three shock mounting positions and two shock tower mounting positions provided. |
20.00 |
| 73004 | 1 | Upper Deck
(Graphite / Super Nitro RS4) Strong woven graphite upper deck stiffens the chassis, and still allows you to take out the radio tray easily. Purple aluminum joints included! |
28.00 |
| 74108 | 1 | Pro
Glow Plug Igniter Set with AC Charger (120v) Rechargeable glow plug igniter that features a charge meter with an overnight AC wall plug charger. |
35.00 |
| 74111 | 1 | 4-Way
Glow Plug Wrench (Small) Remove glow plugs easily, and store up to 3 on the wrench itself. A must for any Nitro car owner! |
6.00 |
| 74318 | 1 | HPI
Power Fuel 20% Nitro (1 quart) A custom-formulated 14% synthetic/castor oil blend for extra life and reliability for your car's engine. HPI Power Fuel is made especially for HPI Racing by Wildcat Fuels. |
10.00 |
| 74320 | 1 | HPI
Power Fuel 30% Nitro (1 quart) See above for details |
12.00 |
| 74348 | 1 | HPI
Power Fuel 20% Nitro (1 gallon) See above for details |
29.00 |
| 74350 | 1 | HPI
Power Fuel 30% Nitro (1 gallon) See above for details |
35.00 |
| 76813 | 1 | Spur
Gear 43 Tooth (1M) (Adapter Type / Nitro 2 Speed) Use only with #A882 Heavy Duty 1st Gear Adapter. Will not fit the Nitro RS4 3 kits! |
4.00 |
| 76814 | 1 | Spur
Gear 44 Tooth (1M) (Adapter Type / Nitro 2 Speed) Use only with #A882 Heavy Duty 1st Gear Adapter. Will not fit the Nitro RS4 3 kits! |
4.00 |
| 76816 | 1 | Spur
Gear 46 Tooth (1M) (Adapter Type / Nitro 2 Speed) Use only with #A882 Heavy Duty 1st Gear Adapter. Will not fit the Nitro RS4 3 kits! |
4.00 |
| 86164 | 1 |
Exhaust Header (Rear Exhaust Engine/L Shape/Black) | 13.00 |
| 87120 | 1 |
HPI
Roto Start System Fits Nitro MT with kit or aftermarket header. The HPI Roto Start system replaces the standard pullstarter with a durable metal gear backplate and a handheld shaft driven starter. Starting is as simple as pressing a button. Requires a 7.2v rechargeable "stick" battery pack and charger. Complete instructions included.Some disassembly of the engine is required. This Roto Start System fits only HPI Nitro Star .12 and .15 engines. Standard stick-type 7.2v battery and charger required. |
55.00 |
| 87121 | 1 |
Back
Plate Unit (gears, case and screws) for additional engines
Extra Back Plate Unit allows you to use #87120 on multiple engines. |
18.00 |
| A111 | 2 | Super Shock
Set 45-56 Include PTFE shock pistons and red springs. Hard-anodized aluminum shock bodies and caps, stainless steel shock shafts. Shock bladders also included. |
32.00 |
| A169 | 3 | Aluminum Pilot Shaft Use with ball bearings only. For steering arms. Lightens car. |
5.00 |
| A209 | 6 | Sway
Bar Set (Narrow RS4) Will fit all RS4 kits except wide original RS4. Will not fit the Nitro RS4 3 kits! |
21.00 |
| A301 | 8 | Heavy-Duty
Ball Cups 4.3 x 13mm (8 pcs) Snap on securely and won't pop off in the worst wrecks. Feature the HPI logo on the top side. |
4.00 |
| A302 | 8 | Heavy-Duty
Ball Cups 4.3 x 18mm (8 pcs) See above for details |
4.00 |
| A303 | 8 | Heavy-Duty
Ball Cups 4.3 x 23mm (8 pcs) See above for details |
4.00 |
| A311 | 8 | Rod End 4.8 x 10mm
(8pcs) Replace worn shock ends and tune the length of your shocks. Fits #A137 pivot ball, #A138 short ball end, #A167 long ball end, #A783 short purple ball end and #A139 ball end that attaches with 3mm machine screw. |
4.00 |
| A312 | 8 | Rod
End 4.8 x 12mm (8pcs) See above for details |
4.00 |
| A313 | 8 | Rod
End 4.8 x 14mm (8pcs) See above for details |
4.00 |
| A316 | 8 | Rod End 5.8 x 12mm
(8 pcs) Use different lengths for camber links, captured steering links, and other projects. These larger rod ends fit our #A132 pivot ball perfectly. |
4.00 |
| A317 | 8 | Rod
End 5.8 x 15mm (8 pcs) See above for details |
4.00 |
| A318 | 8 | Rod
End 5.8 x 18mm (8 pcs) See above for details |
4.00 |
| A447 | 1 | Spur Gear 41T Stock second speed spur gear for #A910 Nitro RS4 2 Speed. Will not fit the Nitro RS4 3 kits. Will not fit the Nitro RS4 3 kits! |
4.00 |
| A449 | 1 | Spur Gear 44T Stock first speed spur gear for #A910 Nitro RS4 2 Speed. If using #A882 HD 1st Gear Adapter, use #76814 44T spur gear. Will not fit the Nitro RS4 3 kits! |
4.00 |
| A468 | 1 | Carbon Graphite Suspension Arms (2 Pairs/Super Nitro RS4) Stiffer than stock suspension arms. | 20.00 |
| A521 | 1 |
Universal Dogbones (Front) (Super Nitro RS4) Extra efficiency, and axle portion is made from extra-strong material for toughness! |
34.00 |
| A522 | 1 |
Universal Dogbones (Rear) (Super Nitro RS4) Extra efficiency, and axle portion is made from extra-strong material for toughness! |
34.00 |
| A730 | 1 | Urethane
Side Belt (All Nitro RS4) Use on prepared clean tracks only. Made the same way as our Proceed 1/8 scale car belts. |
8.00 |
| A732 | 1 | Urethane
Rear Belt (All Nitro RS4) Use on prepared clean tracks only. Made the same way as our Proceed 1/8 scale car belts. |
8.00 |
| A811 | 1 | 11
Tooth Clutch Bell Lowers gearing more for more acceleration, for cars without 2 speed transmission. Will not fit the Nitro RS4 3 kits! |
7.00 |
| A812 | 1 | 12
Tooth Clutch Bell Lowers gearing for better acceleration, for cars without 2 speed transmission. Will not fit the Nitro RS4 3 kits! |
7.00 |
| A813 | 1 | 13 Tooth Clutch Bell Standard single speed clutch bell in all Nitro kits except Racer. Will not fit the Nitro RS4 3 kits! |
7.00 |
| A814 | 1 | 14T
Clutch Bell Increases top end speed, for cars without 2 speed transmission. Will not fit the Nitro RS4 3 kits! |
7.00 |
| A815 | 1 | 15T
Clutch Bell Increases top end speed more, for cars without 2 speed transmission. Will not fit the Nitro RS4 3 kits! |
7.00 |
| A820 | 1 | Clutchbell 11/14T use with #A882 HD 1st Gear Adapter and one of these spur gear combinations: 76813/76816 or 76814/A447. Recommended for Super Nitro RS4 only on small tracks. Will not fit the Nitro RS4 3 kits! |
12.00 |
| A821 | 1 | Clutchbell 12/15T use with #A882 HD 1st Gear Adapter and one of these spur gear combinations: 76813/76816 or 76814/A447. Recommended for Super Nitro RS4 only on small to medium size tracks. Will not fit the Nitro RS4 3 kits! |
12.00 |
| A823 | 1 | Clutchbell 13/16T for #A910, stock Nitro 2 Speed clutchbell. For Super Nitro RS4, combine with #A882 HD 1st Gear Adapter and one of these spur gear combinations: 76813/76816 (medium to large size tracks) or 76814/A447 (large tracks). For ALL OTHER NITRO RS4: use with stock Nitro 2 Speed spur gears (44T and 41T) on small tracks. If using #A882 HD 1st Gear Adapter, use #76814 44T spur gear. Will not fit the Nitro RS4 3 kits! |
10.00 |
| A844 | 1 | Fiber
Brake Disc Thicker, more durable, resists melting from high speed, high demand racing. Set screw head to brake block distance at 20mm or 0.8". |
14.00 |
| A882 | 1 | Heavy
Duty First Gear Adapter (Purple / Nitro 2 Speed) Perfect for the Super Nitro RS4 and any Nitro RS4 car with a high-powered engine. Purple anodized aluminum hub for new first gear spur gears on Nitro 2 Speed. Includes one-way bearing pre-installed. Use with new first gear "adapter type" spur gears #76813, 76814 or 76816 |
19.00 |
| A885 | 1 | Nitro
Racing Clutch Three-way adjustable clutch shoes, fits any HPI flywheel. Loop style spring for smooth power transfer. Won't burn up under extreme conditions. Click here for a picture of the unassembled parts. |
15.00 |
| A888 | 1 | 2 Speed Maintenance Set Includes 2 spare balls, 2 spare black springs, 2 spare silver springs and 2 spare set screws. Not for use with the Nitro RS4 3 kit! |
5.00 |
| A889 | 1 | Slide
Carb Linkage Set Fit the Nitro Star Pro 12R SC or Nitro Star 15SC engines in your car with this throttle linkage set. Includes all the parts necessary, some parts that are already on your car will be needed also. Note to NXT truck owners: Slide carb engines will not fit in the Losi NXT truck. Click here to see the individual parts. |
8.00 |
| A896 | 1 |
Slide Carb Linkage Set (for all slide carburetor-equipped
engines) Comes with instructions and all hardware necessary to fit throttle servos and slide carb engines. Uses some hardware that is already on your Nitro RS4 car. |
3.00 |
| A905 | 1 | 39T
Ball Diff Set (All Nitro RS4) Will allow you to tune your car for better cornering. Recommended for advanced racers only. |
35.00 |
| A907 | 1 | Gear
Brace Set For Nitro RS4 Reduces slop in the gear shaft and pulley shaft for cars with high-power engines. Includes 4 ball bearings and belt tensioner. |
34.00 |
| A911 | 1 | 2 Speed
Transmission (Super Nitro RS4) Lower overall gear ratio suited to the larger tires on Super Nitro RS4 cars. Uses our #A882 Heavy Duty First Gear Adapter so gears will not be damaged by high-powered engines. Gearing is 12/46 for first gear, 15/43 for second gear. Gearing can be changed with optional clutchbells and spur gears - not included. Click here to see a disassembled picture. |
80.00 |
| A915 | 2 | Heat
Sink Engine Mount 20mm For Pull Start Anodized aluminum, finned to dissipate heat. Includes screws to mount to engine and chassis. Use with kit stock flywheel or #A925. |
45.00 |
| A920 | 2 | Heat
Sink Engine Mount 15mm For Non-Pull Start Anodized aluminum, finned to dissipate heat. For non-pullstart engines only! Lowers the engine for better center of gravity. Includes screws to mount to engine and chassis. Must use with #A926, A940 and A950 |
45.00 |
| A925 | 1 | Lightweight
Flywheel 40mm For Pull Start Lightens rotating weight for faster straightaway speeds and more RPM. Use with stock engine mounts or #A915. Requires #A804 Brass Collet and Washer set for installation on any kit with 15FE engine. |
20.00 |
| A926 | 1 | Lightweight
Flywheel 32mm For Non-Pull Start Lightens rotating weight for faster straightaway speeds and more RPM. Must be used with #A920, A940 and A950 (or A970 set). Requires #A804 Brass Collet and Washer set for installation on any kit with 15FE engine. |
18.00 |
| A928 | 1 | Oil
Catch For Nitro Star Engines Fits around one-way bearing on crankshaft and keeps oil off chassis and brake disk. Has drain hole. Will not fit Nitro Star Pro 12R SC Engine. Fits HPI engines Nitro Star 12E, 15FE, 15SS and 15SC. |
17.00 |
| A935 | 1 | Nitro
RS4 Rear Brace Graphite Set Rear Y-brace stiffens the rear of the chassis for more consistent suspension and less flex. Woven graphite piece, use screws included with kit to replace stock nylon rear brace. Includes antenna mount. |
10.00 |
| A940 | 1 | Tuned
Pipe .12 to .15 Provides more power overall. Louder than stock muffler. Will not fit the Nitro RS4 Mini. |
65.00 |
| A950 | 1 | Exhaust
Header (O.S., HPI) Fits perfectly with A940 Tuned Pipe and Nitro Star or O.S. engines. Specifically for the Nitro RS4. Will not fit the Nitro RS4 Mini. |
32.00 |
| A959 | 1 | Super
Front One-Way Differential 39T Uses FOUR one-way bearings instead of two (#A506) for increased durability. Purple anodized! |
49.00 |
| A966 | 1 | Super
Nitro RS4 Super Chassis 7075S 3mm thick, super-strong 7000 series aircraft aluminum. Fully countersunk screw heads, and a full set of flathead screws is included. |
95.00 |
| A970 | 1 | Tuned
Pipe and Exhaust Header Set Combines #A940 Tuned Pipe and #A950 Exhaust Header sets in one package. |
89.00 |
| Z056 | 5 | Titanium
TP. Binder Head Screw (3 x 8mm) Cool natural finish. Feature 2mm hex head for easy removal. |
6.00 |
| Z057 | 5 | 6.00 |
|
| Z058 | 5 | 6.00 |
|
| Z059 | 5 | 6.00 |
|
| Z060 | 5 | 6.00 |
|
| Z066 | 5 | 6.00 |
|
| Z068 | 5 | 6.00 |
|
| Z069 | 5 | 6.00 |
|
| Z070 | 5 | 6.00 |
|
| Z076 | 5 | Aluminum
TP. Flat Head Screw M3x8mm (Hex Socket / Purple / 5 pcs) Purple anodized aluminum flat head self-tapping screws for any R/C car. Use a 2mm hex socket wrench. |
4.00 |
| Z078 | 5 | 4.00 |
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| Z079 | 5 | 4.00 |
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| Z675 | 5 | 5.00 |
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| Z678 | 5 | 4.00 |
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| Z679 |
5 |
Aluminum Wheel Nut M4 (Purple / 5 pcs |
4.00 |
