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The Left-Hand Mate to Wilwood's 15-Inch SRP Rotor Ring
Wilwood 160-14636-BK is the left-hand rotor ring in the SRP drilled and slotted family, 15.00 in across and 1.25 in wide, cast in Spec-37 iron with 72 curved vanes. It weighs 23.00 lb, mounts through a twelve-bolt 8.75 in circle, and is the left-hand rotor used in kit 140-15025-D.
Key Features
- SRP drilled and slotted rotor measuring 15.00 in diameter by 1.25 in width.
- Spec-37 iron with 72 curved vanes for high thermal capacity.
- Directional cross-drill and face-slot pattern that inhibits irregular pad compound build-up and sharpens pedal response.
- Black electro coat finish, dynamically balanced, supplied unburnished.
- Left-hand directional part that pairs with the right-hand 160-14635-BK.
- Drilling and slotting also lower rotating and unsprung weight compared with a solid face.
Fitment
| Application | Detail |
|---|---|
| Application type | Component rotor for Wilwood hat-mount big brake assemblies |
| Known parent kit | Left-hand rotor in Wilwood kit 140-15025-D |
| Vehicle fitment | None published standalone; fitment follows the parent kit |
Wilwood publishes no standalone vehicle application. The hat, caliper bracket and kit decide where this ring can be used.
Specifications
| Detail | Value |
|---|---|
| Brand | Wilwood |
| MPN | 160-14636-BK |
| Part type | Rotor ring, hat mount |
| Diameter | 15.00 in |
| Width | 1.25 in |
| Mount side | Left hand |
| Material | Spec-37 iron |
| Vane count | 72 curved vane |
| Weight | 23.00 lb |
| Type | SRP-BLK |
| Style | SRP drilled and slotted |
| Surface finish | Black electro coat |
| Burnished | No |
| Balanced | Yes |
| Rotor bolt circle | 12 x 8.75 in |
| Rotor mount hole size | 0.251 in |
| Lug ID registration | 8.25 in |
| Far-side inside diameter | 9.65 in |
| UPC | 889545081718 |
What's Included
- One Wilwood SRP drilled and slotted rotor, left hand
About Wilwood
Within Wilwood's rotor catalogue the SRP range covers street and performance use, and the larger sizes are sold as bare rings that bolt to a separate hat. Selling the ring on its own is deliberate: on a hat-mount assembly the iron is the consumable, and the aluminium hat, studs and caliper bracket normally outlast several sets of rings.
FAQ
Can this rotor go on either side of the car?No. The drill and slot pattern is directional and this is the left-hand part; the right-hand side takes 160-14635-BK.
What is the published weight?23.00 lb for the ring on its own.
What are the mounting dimensions?A twelve-bolt pattern on an 8.75 in circle, 0.251 in mount holes, 8.25 in lug registration and a 9.65 in far-side inside diameter.
Does it come with mounting bolts or a hat?No, the listing supplies the rotor ring only.
Why does drilling and slotting matter on a rotor this size?Wilwood's stated reasons are inhibiting irregular pad compound build-up, improving pedal response, and shaving rotating and unsprung weight off a large iron disc.
Is the rotor pre-burnished?No. It is dynamically balanced but not burnished, so a bed-in cycle is still needed after fitting.
Which kit is it normally found in?It is the left-hand rotor in Wilwood kit 140-15025-D, mounted to hat 170-7467.
Does Wilwood publish a torque value for the rotor bolts?Not on the pages that describe this rotor, so use the torque given in the instruction sheet supplied with the kit or hat hardware.
How is the rotor bedded in?Wilwood's published sequence works up from light decelerations to medium and firm stops, finishing with eight to ten hard decelerations from 55-65 mph to 25 mph.
Installation Instructions
- Verify that the assembly takes a 15.00 in by 1.25 in ring on a twelve-bolt, 8.75 in circle before removing anything.
- Set the rotor aside for the left-hand side, since the pattern is directional.
- Clean the hat face and check the twelve mounting holes for elongation or thread damage.
- Bolt the ring to the hat evenly in a cross pattern using the correct Wilwood rotor hardware.
- Fit the assembly to the hub and measure runout before refitting the caliper.
- Refit the caliper and confirm the pad sweep sits inside the friction band on both faces.
- Run Wilwood's bed-in cycle, ending with eight to ten hard decelerations from 55-65 mph to 25 mph.
- Allow the assembly to cool fully, then re-check the rotor bolts.
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