PRP LS1 Alternator Conversion Kit - Nissan RB20/RB25/RB26
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Select items are stocked in the USA — others ship from the manufacturer. Delivery calculated at checkout.
Platinum Racing Products - LS1 Alternator Conversion Kit for RB
Ditch that tired RB Alternator that is over 25 years old and step into a world of reliability. The alternators on the Nissan RB series engines came with an output of 35amps and 90Amps in the later model RB26.
With today's technology and horsepower figures being constantly pushed, an average street car can easily consume even the full 90amps by making even the most minor modifications such as, Aftermarket ECU's, Additional Fuel Pumps, Upgraded Ignition Hardware or even a simple set of headlight upgrades.
Our LS1 alternator kit is suited to the GM 92058857 and since the genuine's are being discontinued, we offer an OEX or Baxters MTQ product equivalent producing a whopping 140amps and are a cheap viable upgrade for the RB platform using our quality conversion kit.
Platinum Racing Products has specifically designed this kit to eliminate the requirement of both alternator bracket and conversion bracket when upgrading to LS1 Alternators. Our kit comes fully integrated into ONE good looking and simple solution that allows your alternator to mount as close to the block as much as possible
This kit can be installed in a short amount of time with ease and comes with:
- PRP Custom Billet Alternator Bracket
- Adjusting hardware to suit
- 20% Under driven Alternator Pulley to suit RB 4 rib belts, specifically designed to ensure not over spinning the Alternator beyond manufacturers recommendations.
- Optional LS1 Alternator (either OEX or Baxters MTQ)
- Applicable to all twin and single cam RB engines.
If you are looking for a drive belt also we list the correct length to suit our LS1 kit along with an ATI Harmonic Balancer listed here.
HOW TO INSTALL INSTRUCTIONS (CLICK-ME)
*HOW-TO VIDEO BELOW*
- Brand
- Platinum Racing Products
- Platform
- Nissan Skyline
- Engine
- RB20/RB25/RB26
- Category
- Alternators
- SKU
- PRPLSALTKIT-NOAPUR
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Alex M.
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They actually took the time to help me choose the right setup for my GT-R. That alone won me over.
Brian S.
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Everything arrived well packed and exactly as described. You can tell car people run this shop.
Chris D.
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I've ordered three times now and it's been consistent every time—accurate, quick, and hassle-free.
Daniel R.
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★★★★★
Customer support answered my fitment questions in detail instead of just sending a link. That meant a lot.
Jason L.
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Parts for my Supra showed up on time and bolted right up. No guessing, no drama.
Kevin P.
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★★★★★
Site is easy to navigate and checkout was simple. Whole experience felt dialed in.
Nate H.
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Communication was excellent from order confirmation to delivery updates. I always knew what was happening.
Ryan F.
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★★★★★
These guys are clearly enthusiasts. The brands they stock and how they talk about them says everything.
Tyler N.
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I've dealt with plenty of parts shops—this is one of the few I trust with big-ticket items.
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I had an issue with a manufacturer drop-ship and J-Spec Garage handled it for me. That's real customer service.
Josh H.
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Carlos N.
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Derek W.
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Javier S.
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Steven D.
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★★★★★
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Marcus D.
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★★★★★
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Preston G.
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★★★★★
The turbo and supporting parts I got for my Supra were exactly what I needed. Everything matched the listing.
Trevor M.
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★★★★★
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Victor H.
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★★★★★
It didn't feel like I was buying from a generic online store. It felt like a shop built for enthusiasts.
Wyatt N.
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★★★★★
Good communication, real brands, and parts that showed up when they said they would. Hard to beat that.
Zachary R.
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★★★★★
J-Spec Garage is my first stop for JDM parts now—fast shipping and no surprises.
Alex M.
-
★★★★★
They actually took the time to help me choose the right setup for my GT-R. That alone won me over.
Brian S.
-
★★★★★
Everything arrived well packed and exactly as described. You can tell car people run this shop.
Chris D.
-
★★★★★
I've ordered three times now and it's been consistent every time—accurate, quick, and hassle-free.
Daniel R.
-
★★★★★
Customer support answered my fitment questions in detail instead of just sending a link. That meant a lot.
Jason L.
-
★★★★★
Parts for my Supra showed up on time and bolted right up. No guessing, no drama.
Kevin P.
-
★★★★★
Site is easy to navigate and checkout was simple. Whole experience felt dialed in.
Nate H.
-
★★★★★
Communication was excellent from order confirmation to delivery updates. I always knew what was happening.
Ryan F.
-
★★★★★
These guys are clearly enthusiasts. The brands they stock and how they talk about them says everything.
Tyler N.
-
★★★★★
I've dealt with plenty of parts shops—this is one of the few I trust with big-ticket items.
Zach W.
-
★★★★★
My 240SX build depends on good vendors. J-Spec Garage has delivered every time so far.
Cody J.
-
★★★★★
You can tell they care about the scene, not just sales. That's why I keep going back.
Dylan P.
-
★★★★★
I had an issue with a manufacturer drop-ship and J-Spec Garage handled it for me. That's real customer service.
Josh H.
-
★★★★★
The coilovers for my S13 came packed perfectly and ride exactly how they advertised. Super happy.
Kyle M.
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★★★★★
Grabbed both parts and merch—quality on both sides. Cool to support a shop that supports the community.
Sean L.
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★★★★★
I recommend J-Spec Garage to anyone building a JDM car. Solid parts and people who know the platforms.
Omar V.
-
★★★★★
The RaceOnly parts I grabbed for my RX-7 were top-notch. Fitment was perfect and the car feels night and day better.
Aaron F.
-
★★★★★
Finding legit rotary parts is tough, but J-Spec Garage came through with RaceOnly gear that actually delivers.
Blake S.
-
★★★★★
Finally found a shop that understands rotary builds. The RaceOnly pieces I ordered have held up great under real abuse.
Jake P.
-
★★★★★
Everything for my FD—from RaceOnly parts to small accessories—showed up clean, labeled, and ready to bolt on.
Mason K.
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★★★★★
I've ordered RaceOnly gear from other places before, but the service and communication from J-Spec Garage were on another level.
Noah V.
-
★★★★★
The RaceOnly pieces for my RX-7 build fit exactly like they should. No grinding, no modifying, just bolt-on and go.
Owen T.
-
★★★★★
It's hard to find a shop that really understands rotary builds, but J-Spec Garage clearly does.
Caleb M.
-
★★★★★
Real rotary parts, solid communication, and no nonsense. Exactly what I want from a parts shop.
Isaac R.
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★★★★★
The Supra parts I ordered were clearly not cheap eBay stuff—quality brands and everything matched the listing perfectly.
Adrian C.
-
★★★★★
I've been slowly building my MK4 and every order from J-Spec has shown up on time and ready to install.
Carlos N.
-
★★★★★
They actually understood what I was trying to do with my Supra build and suggested parts that made sense, not just the priciest options.
Derek W.
-
★★★★★
The turbo-related parts for my Supra came exactly as described and have held up great under boost. Zero complaints.
Javier S.
-
★★★★★
I appreciate that they stock real-deal brands for Supra builds instead of filling the catalog with questionable stuff.
Miguel R.
-
★★★★★
I'm picky about what goes on my MK4. J-Spec Garage earned my trust with accurate listings and solid communication.
Steven D.
-
★★★★★
I've had a great experience ordering Supra parts here—accurate listings, fair pricing, and quick shipping.
Marcus D.
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★★★★★
It's refreshing to buy Supra parts from a shop that actually knows the platform.
Preston G.
-
★★★★★
The turbo and supporting parts I got for my Supra were exactly what I needed. Everything matched the listing.
Trevor M.
-
★★★★★
If you're building an RX-7 or Supra, this is a shop you want to know. RaceOnly parts for the rotary and quality Supra gear in one place is a win.
Victor H.
-
★★★★★
It didn't feel like I was buying from a generic online store. It felt like a shop built for enthusiasts.
Wyatt N.
-
★★★★★
Good communication, real brands, and parts that showed up when they said they would. Hard to beat that.
Zachary R.