Collection: RB Collection
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Koyo Type A Radiator Cap (Red / 1.3 Bar)
Regular price $49.99Regular priceSale price $49.99 -

GReddy Type-S No Relief Radiator Cap Most Nissan/Subaru/Mazda/Mitsubishi/Some Toyota - Polished
Regular price $17.99Regular price$18.00Sale price $17.99Sale -
GReddy Nissan Skyline GT-R (BCNR33) 13 Row Oil Cooler Kit
Regular price $1,035.99Regular price$1,090.00Sale price $1,035.99Sale -
SPAL Jumper Harness for Brushless Fans
Regular price $41.99Regular price$62.57Sale price $41.99Sale -
SPAL Harness Adapter for Brushless Fans
Regular price $51.99Regular price$74.19Sale price $51.99Sale -
Nissan R-Chassis Top Radiator Mounts
Regular price $53.00Regular priceSale price $53.00 -
Nissan RB26 / RB25DET Neo OEM Heat Exchanger bypass
Regular price $99.00Regular priceSale price $99.00 -
Nissan R-Chassis Flat Top Radiator Mounts
Regular price $53.00Regular priceSale price $53.00 -
DEI Exhaust Wrap 2in x 50ft - Titanium
Regular price $79.99Regular priceSale price $79.99Sold out -
DEI Split Wire Sleeve Easy Loom 19mm-3/4in x 100 Black
Regular price $197.99Regular priceSale price $197.99 -
DEI Protect-A-Sleeve 2in ID x 3ft - Titanium
Regular price $74.99Regular priceSale price $74.99 -
DEI Hi-Temp Shrink Tube 12mm x 1.5in - Blue
Regular price $20.99Regular priceSale price $20.99 -
DEI Hi-Temp Shrink Tube 12mm x 1.5in - Red
Regular price $20.99Regular priceSale price $20.99 -
DEI Exhaust Wrap 6in x 100ft - Titanium
Regular price $410.99Regular priceSale price $410.99 -
DEI Protect-A-Sleeve 1/2in ID x 6ft Universal - Titanium
Regular price $32.99Regular priceSale price $32.99 -
DEI Protect-A-Wire 5/16in (8mm) x 50ft - Black
Regular price $36.99Regular priceSale price $36.99 -
Koyo Hyper Radiator Cap - Shallow Plunger Style - Blue Label
Regular price $49.99Regular priceSale price $49.99 -
Koyo Universal Tube and Fin Crossflow Fluid Cooler
Regular price $493.99Regular price$494.00Sale price $493.99Sale -
Koyo 19 Row Oil Cooler 11.25in x 5.75in x 2in (AN-10 ORB provisions)
Regular price $297.99Regular priceSale price $297.99 -
Koyo 35 Row Oil Cooler 11.25in x 11in x 2in (-10AN ORB provisions)
Regular price $500.99Regular price$501.00Sale price $500.99Sale -
Koyo 25 Row Oil Cooler 11.25in x 7.5in x 2in (AN-10 ORB provisions)
Regular price $323.99Regular priceSale price $323.99 -
Koyo 10 Row Oil Cooler 11.25in x 3in x 2in (AN-10 ORB provisions)
Regular price $180.99Regular priceSale price $180.99 -
SPAL 608 CFM 9in Fan - Push (VA07-AP12/C-31S)
Regular price $98.99Regular price$125.03Sale price $98.99Sale -
HKS RADIATOR CAP S-Type
Regular price $30.99Regular price$25.00Sale price $30.99
About the RB Collection
The RB26DETT is one of the most celebrated inline-six engines ever built — the twin-turbocharged heart of the Nissan Skyline GT-R that dominated motorsport and built the GT-R legend. J-Spec Garage's RB Collection covers the parts to build and sustain serious RB power, from the RB26DETT in the R32, R33, and R34 GT-R across the broader RB-series family.
Shop forged pistons and rods, head studs, camshafts, valvetrain, gaskets, oil system upgrades, and rebuild components from Brian Crower, Tomei, GSC Power Division, Platinum Racing Products, and more. Whether you're refreshing a stock RB or assembling a 1,000+ hp build, these are the components to do it reliably — backed by our price match guarantee and fast US shipping.
Shop the full RB engine parts collection below.













