Main RS4 Sport 2 Page | Manual |Spec Sheet | Parts List | Building Tips | Racing Tips | Additional Features | Electric FAQ
 |
Increase
the suspension options on your car with our #73006 and #73007 Front
and Rear Graphite Shock Towers! |
 |
The
#73008 Handling Kit will increase your rear traction significantly! |
 |
Fine-tune
your car with our #72106 Graphite Ball Diff Set! |
 |
Our
#A509 Super Front One-Way Diff will increase the steering of your
car dramatically |
 |
Keep
that motor cool with our #A789 Heat Sink Motor Plate |
 |
Use
the #A503 Purple Anodized Titanium Turnbuckle Set to make suspension
changes easier |
Excel Parts List for all HPI kits
This is a cross-referenced parts list for every HPI product that is currently sold.
Download the newest version here
HTML version of the Kit Parts Cross Reference (to see the list in your browser)
Microsoft Excel file viewer (if you don't have Excel on your computer)
To see what some of these parts look like, click on the linked description line. The pictures are 5 to 6 inches across and range from 40 to 90K.
| Part # | # | Description |
Price |
| 6272 | 1 | Bumper
Plate (RS4 Sedans) Woven graphite plate keeps precut foam bumpers in plate and looks great. Not for RS4 Mini, RS4 MT, Nitro RS4 MT or Super Nitro RS4 See it installed here. |
8.00 |
| 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 |
| 7115 | 3 | Touring
Car Rear Wing Set Three wings in different widths (175mm, 185mm, 195mm) for use on any wide or narrow touring car body, molded in thick, tough 0.040" polycarbonate! Three sets of side plates are included to fine-tune the wing for long or tight tracks. A special "Gurney Flap" is molded into each wing for extreme rear downforce, and the thickness of the wing prevents the wing from being deformed at high speeds. This is a great "secret weapon" for touring car racers! See the wing profile here. |
10.00 |
| 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 |
| 9084 | 1 |
HPI Curved Scissors
Cuts through R/C polycarbonate bodies easily, and is curved for extra convenience. |
12.00 |
| 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 |
| 72021 | 1 |
Aluminum Upper
Arm Mount 2 Degree (Purple / Pro 2/Sport 2) Strengthens the front end of the car. Combine with #72045 Aluminum Lower Arm Mount 2 Degree for a no-flex front end! Note that this part will give you 2 degrees of kick-up, perfect for bumpy tracks. AVAILABLE EXCLUSIVELY AT BUY HPI! |
28.00 |
| 72024 | 1 |
Rear Upper
Arm Mount (Purple / Pro 2/Sport 2) Strengthens the rear end of the car by removing flex in the upper arms. AVAILABLE EXCLUSIVELY AT BUY HPI! |
28.00 |
| 72027 | 1 |
Purple Anodized
Aluminum Center Bulkhead (Pro 2/ Sport 2) Purple anodized for great looks, when used with #72138 Aluminum Side Plate Set, this will help stiffen the rear end of the car. 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 | 1 |
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 |
| 72037 | 1 | Aluminum
Center One-Way Pulley (15T) (Purple Anodized) Much lighter than original steel One-Way Pulleys. Suited for large high-grip tracks with long straight sections. |
34.00 |
| 72039 | 1 |
Pro Spur
Gear Hub (Lightweight/ Purple Anodized) Click here to see the disassembled version. Prevents spur gear wobble and keeps the gear mesh true. |
24.00 |
| 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 |
| 72050 | 1 |
Adjustable Middle One-Way
System/Slipper Fits all electric RS4 cars. An excellent tuning aid for your electric RS4 series car lets you literally dial in more steering and top speed! A spring-loaded locknut controls the the tension on two PTFE discs to provide you with a fixed pulley, full one-way pulley, or anything in between! Click here for an unassembled view. Comes with complete instructions. You can still use a slipper clutch with this part. AVAILABLE EXCLUSIVELY AT BUY HPI! |
45.00 |
| 72062 | 1 | 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 | 1 | 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 | 1 | 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 |
| 72090 | 1 | Titanium
Hinge Pin Set (Purple / RS4 Pro 2) Purple anodized titanium, lightens the weight of the car, especially unsprung weight - weight on the suspension arms. Titanium is half the weight of steel and three times the strength. While some of the hinge pins will fit other HPI kits, there will be too many left over to make it worthwhile. |
30.00 |
| 72105 | 1 |
Diff Ring D Cut Type (2 pcs / for Graphite Diff Hub #A497
or #72106) Replacement diff rings for the #A497 or #72106 Graphite Diff Hub sets. 2 pieces are needed to rebuild one ball diff. |
2.00 |
| 72106 | 1 |
Graphite Ball
Diff Set (One Complete 32T Set / RS4, Pro, Pro 2, Rally, Mini) Includes all parts necessary for one complete ball diff. Two sets are needed for most electric cars. NOT FOR NITRO CARS! |
32.00 |
| 72138 | 1 | Aluminum
Side Plate Set (RS4 Pro 2) Purple anodized for great looks, stiffens the rear end. Can be used with Pro 2/Sport 2. When used with #72027 Aluminum Center Mount, and extra hole allows the rear end to be stiffened considerably. AVAILABLE EXCLUSIVELY AT BUY HPI! |
28.00 |
| 72422 | 1 | Aluminum Spring
Perch (Purple/4 pcs) Dress up your car with these lightweight replacement shock parts! |
16.00 |
| 73006 | 1 | Front
Shock Tower (Graphite / RS4 Pro 2) 0.118 inch thick woven graphite is extremely durable against crash damage! Adds 6 shock mounting holes for front shocks, provides 3 camber link locations if you wish to use with our Rally/Sport/Nitro cars. |
15.00 |
| 73007 | 1 | Rear
Shock Tower (Graphite / RS4 Pro 2) 0.118 inch thick woven graphite is extremely durable against crash damage! Adds 3 shock mounting holes for rear shocks under the stock locations. |
20.00 |
| 73008 | 1 | Pro
2 Handling Kit (Rollcenter Plate) Increases the rear traction of the Pro 2 by raising the rollcenter slightly. Allows you to use slightly softer springs in the rear, great for use with one-way pulley and/or diff. |
26.00 |
| A156 | 6 | Ball
2mm (Carbide) Harder ball lets thrust bearing go longer between rebuild |
14.00 |
| A157 | 12 | Ball
2.4mm (Carbide) Harder ball lets ball diff go longer between rebuilds |
12.00 |
| A169 | 3 | Aluminum
Pilot Shaft Use with ball bearings only. Lightens car. |
6.00 |
| A191 | 1 | 2
Speed Gear Shaft |
5.00 |
| A206 | 2 | Nerf
Wing (Woven Graphite) (Narrow RS4) |
12.00 |
| A209 | 6 | Sway
Bar Set (Narrow RS4) (All RS4 Pro/Sport) |
21.00 |
| A216 | 2 | Nerf
Wing (Woven Graphite) (Wide RS4) |
12.00 |
| A248 | 1 | 30.00 |
|
| A253 | 1 | 18.00 |
|
| A254 | 1 | One-Way
Pulley 14T For RS4 See the FAQ for how to use the One-Way Pulleys |
34.00 |
| A255 | 1 | One-Way
Pulley 15T For RS4 See the FAQ for how to use the One-Way Pulleys |
34.00 |
| A297 | 1 | 2
Speed Transmission (For RS4 Sport/Pro) NOTE: if you have the 2 belt conversion for the original RS4, only this 2 speed transmission will work. Higher second gear allows for faster top speed. Adjustable shift point. |
69.00 |
| A298 | 1 | 2
Speed Maintenance Kit (Electric Cars) Includes a spare clutch ball, clutch spring, set screws and aluminum spacers |
4.00 |
| 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 |
| A467 | 1 | Carbon
Graphite Suspension Arms (2 Pairs / RS4 Pro 2) Stronger and stiffer lower suspension arms, all four arms are included. |
18.00 |
| A497 | 1 |
Graphite Diff
Hubs (2 Sets) Super lightweight diff hubs for electric RS4 kits with ball diffs. This will convert 2 ball diffs from steel outdrives to graphite nylon outdrives for faster acceleration and higher top speed. Includes D-shaped diff rings, you must provide new diff balls and thrust bearing assembly. NOT FOR NITRO CARS! |
12.00 |
| A503 | 1 |
Titanium Turnbuckle
Set (Purple / RS4 Pro 2) Purple anodized titanium, lightens the weight of the car, especially unsprung weight - weight on the suspension arms. Titanium is half the weight of steel and three times the strength. Includes adjustment wrench. |
38.00 |
| A506 | 1 | RS4
Front One-Way Diff II (32T) The Front One-Way Diff II has two one-way bearings in it so that the front wheels do not pull to one side. The original Front One-Way Diff uses just a single one-way bearing. |
32.00 |
| A507 | 1 | Slipper
Clutch Set (For RS4) Lets you adjust the traction for the driving surface. Same operation as an off-road slipper clutch. Illegal for ROAR-, NORRCA- or IFMAR-sanctioned races. |
23.00 |
| A509 | 1 | Super
Front One-Way Differential 32T Uses FOUR one-way bearings instead of two (#A506) for increased durability. Purple anodized! |
49.00 |
| A789 | 1 | Heat
Sink Motor Plate (Purple Anodized) Fits the RS4 Rally/Pro/Sport/Mini cars also! |
30.00 |
| A790 | 1 | Joint
8 x 30mm (Purple / 4 pcs) Purple aluminum joints for use with the #A253 Graphite Belt Tensioner on the Pro 2, Pro/Sport/Rally/Mini kits and Nitro kit graphite upper decks |
8.00 |
| Z046 | 2 |
14.00 |
|
| Z056 | 5 | Titanium
TP. Binder Head Screw (3 x 8mm) Cool natural finish. Feature 2mm hex head for easy removal. |
6.00 |
| Z057 | 5 | Titanium
TP. Binder Head Screw (3 x 10mm) See above for details. |
6.00 |
| Z058 | 5 | Titanium
TP. Binder Head Screw (3 x 12mm) See above for details. |
6.00 |
| Z059 | 5 | Titanium
TP. Binder Head Screw (3 x 15mm) See above for details. |
6.00 |
| Z060 | 5 | Titanium
TP. Binder Head Screw (3 x 18mm) See above for details. |
6.00 |
| Z066 | 5 | Titanium
TP. Flat Head Screw (3 x 8mm) See above for details. |
6.00 |
| Z068 | 5 | Titanium
TP. Flat Head Screw (3 x 12mm) See above for details. |
6.00 |
| Z069 | 5 | Titanium
TP. Flat Head Screw (3 x 15mm) See above for details. |
6.00 |
| Z070 | 5 | Titanium
TP. Flat Head Screw (3 x 18mm) See above for details. |
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 | Aluminum
TP. Flat Head Screw M3x12mm (Hex Socket / Purple / 5 pcs) See above for details. |
4.00 |
| Z079 | 5 | Aluminum
TP. Flat Head Screw M3x15mm (Hex Socket / Purple / 5 pcs) See above for details. |
4.00 |
| Z675 | 5 | Aluminum
Thin Lock Nuts (Purple / 5 pcs) Purple aluminum lock nuts for securing 3mm screws. |
5.00 |
| Z678 | 5 | Aluminum
Thin Lock Nuts (Purple / 5 pcs) Purple aluminum wheel nuts for lighter weight. |
4.00 |
| Z679 |
5 |
Aluminum Wheel Nut
M4 (Purple / 5 pcs |
4.00 |
