Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Engines and Components› Pistons and Piston Rings
HKS
HKS PISTON FULL KIT VR38 4.1L KIT
SKU: H005 21004-AN018
Professional / shop required
Overview
Show original supplier description
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | HKS |
| Part Number | H005 21004-AN018 |
Videos
Nissan GTR POV| GTR 4.1L R35 (Replacing the Hero 5)
Nissan GTR POV| GTR 4.1L R35 (Sunday Drive)
Nissan GTR POV| GTR 4.1L R35 (Driving with the Hero 10)
Unboxing HKS 2.8 Step 2 stroker kit, oil pump, connecting rods full engine internals unboxing review
My First Reaction to the HKS Built 2.8L Stroker RB26 | Pure Sound
UP Garage RB28 GTR 2.8 liter HKS stroker kit forged internals Step 2 VCam and HKS 2530 turbos
550HP Skyline GT-R R33 (HKS 2.8L Stroker and GT-SS's)
1996 Nissan R33 GTR Skyline 2.8L HKS Stroker in car WIDEOPEN pull and walkaround video ( Forsale)
850HP Skyline R33 GT-R Street Drive *ROASTS TIRES* (2.8L Stroker RB Perfection!)
HKS RB28 Step 3 STROKER | $75k motor!?
HKS OVERLOAD | STEP 3 RB28 | R34 GTR
Finally Unboxing my numbered HKS 2.8 Crate Motor from JAPAN!
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy