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337mm Rear Rotor Caliper Adapters for R32, R33 & R34

Suits: Nissan Skyline R32 GTR, R32 GTS-T, R33 GTS-T, R34 GTT, plus Nissan Silvia S13, 180SX, Silvia / 200SX S14, S15 with an R-chassis rear conversion (non-Brembo)

Run 337mm rear rotors on your factory Sumitomo caliper. Billet adapters that space the caliper out to suit.

  • T6-6061 billet aluminium, hard anodised
  • Stainless steel Heli-Coil threads
  • Factory 297mm to HFM.Parts 337mm rotors
  • Mounting bolts included

$209.00 AUD

In Stock · Ships Monday

Extras

Overview

Why upgrade

These adapters move the factory Sumitomo 2-piston rear caliper out to suit our 337mm rear rotors, up from the factory 297mm on the R-chassis. You keep your factory caliper and pads.

They are machined from T6-6061 billet aluminium, hard anodised, with stainless steel Heli-Coil inserts in the threads.

Will it fit my car?

R-chassis: Nissan Skyline R32 GTR, R32 GTS-T, R33 GTS-T, R34 GTT with factory non-Brembo rear calipers. Run them with our 337mm rear rotors, or get both in the 337mm rear brake upgrade kit.

S-chassis: the S13, 180SX, S14 and S15 need R-chassis rear parts first: a 5-stud hub, handbrake cables and shoes, and the Sumitomo 2-piston caliper. That takes you from the factory 258mm rotor to 337mm.

Brembo rear calipers? See our 340mm rear brake upgrade kit for GTR Brembo calipers.

Specifications

Material T6-6061 billet aluminium, hard anodised
Threads Stainless steel Heli-Coil inserts
R-chassis upgrade Factory 297mm to HFM.Parts 337mm rear rotors
S-chassis upgrade Factory 258mm to HFM.Parts 337mm rear rotors (R-chassis conversion needed)
Caliper Sumitomo 2-piston rear caliper (not Brembo)
Hardware Cap head bolts (adapter to stub axle), hex head bolts (caliper to adapter)
Sold as Pair

Fitting

Remove the caliper and rotor. You may need to peel back or remove the outer edge of the backing plate. Fit the adapter to the inside of the knuckle, onto the stub axle, using the cap head bolts and a thread sealant such as Loctite 262. Then refit the caliper to the adapter with the hex head bolts. Step-by-step photos are in the 337mm rotor caliper adaptor install guide.

We recommend installation by a licensed mechanic.

Pairs with

Free AU shipping over $250
In-stock orders dispatched within 24 hours from Melbourne.
2-year warranty
Every part covered against defects from day one. We repair, replace, or refund — your call.
30-day returns
Faulty part? Free return, full refund. Changed your mind? Full store credit, no fees deducted.
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International shipping available to most countries. Rates calculated at checkout.
In the box

What's Included

  • 2× 337mm rear caliper adapter
  • 1× Mounting bolt set
Community

Customer Installs

Installs of this part — and similar parts in this category.

Product Information

Will it fit your car?

Find your car in the list below and add it to your garage. Every part page then checks it for you.

Fits 8 vehicles across 3 models
Nissan 180SX1
RPS13
Nissan 180SX SR20 SR20DE · SR20DET · 1991–1998
1991–1998
Nissan Silvia3
S13, PS13
Nissan Silvia/240SX S13 SR20DE · SR20DET · KA24E · KA24DE · 1988–1994
1988–1994
S14
Nissan Silvia/200SX/240SX S14 SR20DE · SR20DET · KA24DE · 1993–2000
1993–2000
S15
Nissan Silvia/200SX S15 SR20DE · SR20DET · 1999–2002
1999–2002
Nissan Skyline4
BNR32
Nissan Skyline R32 GTR RB26DETT · 1989–1994
1989–1994
HCR32
Nissan Skyline R32 GTS-T RB20DET · 1989–1993
1989–1993
ECR33
Nissan Skyline R33 GTS-T RB25DET · 1993–1998
1993–1998
ER34
Nissan Skyline R34 GTT RB25DET NEO · 1998–2001
1998–2001
We have only confirmed fitment for the vehicles mentioned under compatibility. If your vehicle is not listed, then we don't know if it fits.
HFM.Parts 337mm rear rotors, including the current V2 337mm rear rotors.
Yes, once you have converted to R-chassis rear parts: a 5-stud hub, handbrake cables and shoes, and the Sumitomo 2-piston caliper.
No, these suit the Sumitomo 2-piston caliper. Brembo rear calipers? See our 340mm rear brake upgrade kit for GTR Brembo calipers.
T6-6061 billet aluminium, hard anodised, with stainless steel Heli-Coil thread inserts.
Use the cap head bolts to fit the adapter to the stub axle, on the inside of the knuckle. Use the hex head bolts to fit the caliper to the adapter. See the install guide.

Our Story

We weren't always HFM.Parts; we were Holford Motors. Our brand's identity was forged not in an office, but on the local circuits in the high-stress world of competitive drifting. Our ultimate testbed was our Nissan S14 Drift car, driven by champion Luke Fink. Pushing that car to its limits exposed a crucial truth: achieving genuine, repeatable performance meant relying on components that simply weren't available affordably on the market.

The HFM.Parts brand was born

We made the commitment to design and manufacture the uncompromising, high-quality performance parts that we, as competitive racers, demanded ourselves. Every component you see is a solution conceived, tested, and proven by us. When you choose HFM.Parts, you are investing in components engineered by racers, for racers, ensuring your vehicle delivers its maximum performance potential.

Reviews
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Customer Reviews

Based on 5 verified reviews

  1. Steve ✓ Verified
    Aug 9, 2021
    Compared to the front upgrade, this is an absolute breeze and the front isn't even that much of an issue. I found myself cleaning up the hub and surrounding areas more than I did installing the adaptor - a testament to the ease of the install. Super straightforward install, as simple as the video makes it out to be. Love the look of the slotted design and the size really fills out my wheel. From what I can discern, it has similar braking properties to factory, but the real difference will be under constant braking. Great piece of gear, great work HFM!
  2. Allen Bequilla ✓ Verified
    Nov 16, 2020
    Item is good but when i install it..the breAk pads is rubbing the rotors..i dont know why tho
  3. Aidan Knapp ✓ Verified
    Apr 24, 2020
    As always fast service and parts delivered in quick time, appreciate the information and assistance.
  4. Forklift ✓ Verified
    Oct 8, 2019
    I am also a spare parts supplier. I feel happy about you.
  5. Andrew S. ✓ Verified
    Mar 5, 2019
    Hi there, Apologies for the delayed feedback. This weekend just gone was the first opportunity to install and use the rotors. So far I am very impressed with these.. the previous cross drilled rotors would either crack on the first race day or crack on the second and the new non cross drilled items have survived a 2 day race meet so far with in excess of 50 laps of Barbagallo raceway on them... Which equates to approx 120km of racing of which we finished in second place and set our pb lap times. Thanks again. I would def recommend them as an upgrade over the older cross drilled style. Thank you again. Regards Andrew Souvertjis Facebook page: 265 Motorsport
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HFM.Parts 337mm Rear Rotor Caliper Adapters (Pair) for Nissan Skyline R32 GTR, R32 GTS-T, R33 GTS-T, R34 GTT & Silvia S13, 180SX, S14, S15 (R-Chassis Conversion)
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Modifying vehicles is a specialist task and requires the knowledge and experience of competent individuals to be conducted safely.
We recommend this product be installed by a competent person. Instructions are given with every order where available, however, If you would like a copy prior to ordering, you're welcome to contact us