HKS 1989-2002 NISSAN SKYLINE GT-R | PISTON KIT RB26 STEP2 D86.5 (hks21003-AN013)

Regular price $1,782.00 USD Sale price $1,782.00 USD Regular price $1,980.00 USD
Sale 10.0% $198.00 USD (10.0%)
Special order - Ships in 5+ weeks
SKU: hks21003-AN013
Product Description

This HKS Piston Kit RB26 STEP2 D86.5 features a low-friction double-layer coated OEM replacement piston kit redesigned to achieve lighter weight and durability.


  • OEM replacement, Compatible with STEP2 camshaft, Double-layer coated, piston pin D21-L56 (21005-AK009)
  • Special Order


  • NISSAN SKYLINE GT-R (1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002)


  • Double-layer coated - The outer layer is a moly coating effective for sliding under high loads. The inner layer is a PTFE coating effective for sliding under high rotation.
  • New design truss structure made from forged materials
  • The number of oil jets on the intake side, where the major thrust loads are applied, has been reduced to one to ensure smooth oil lubrication between the cylinder wall and the piston skirt.
  • Lighter weight by eliminating excess thickness around the pin boss area.
  • Piston skirts under the lightening process for lightweight without losing strength
  • Oil from the oil jet is directed to the center of the piston for cooling. Oil from the oil ring is directed to the piston pin for lubrication.


  • Bore - 86.5mm
  • Stroke - 73.7mm
  • Comp ration (t=1.2) - 8.5
  • Maximum RPM - 7,600 rpm (8000 rpm)
  • Weight - 352g
  • Displacement - 2,599cc

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

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