Wiseco Professional Nissan RB25 Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 8.00 CC
Wiseco Professional Nissan RB25 Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 8.00 CC
Wiseco Professional Nissan RB25 Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 8.00 CC
Wiseco Professional Nissan RB25 Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 8.00 CC

Wiseco Professional Nissan RB25 Piston Set of 6 – 86.50 mm Bore – 31.50 mm CH, 8.00 CC

$1,970.87

or 4 interest-free payments of $492.72 with Afterpay on orders up to $2,000

Available to order – usually ships in 2-3 weeks

Bore 86.50 mm · Compression height 31.50 mm · Volume 8.00 cc · Set of 6 · rings included · wrist pins included

Heavy / oversize item — freight quoted to your addressOrder now and we will confirm the exact delivery cost to your address before dispatch — no guessed freight, you only ever pay the real rate. Prefer a price first? Contact us for a freight quote.

Available to order – usually ships in 2-3 weeks

Freight quoted after you order - we confirm the cost to your address before dispatch

Check fitment by rego or VIN
Secure checkout: Square · PayPal · Afterpay · Apple Pay · Google Pay
Willys Workshop · Oxley & Warana, QLD
SKU: WPC-K578M865 Categories: , , , , , Brand:
Returns within 30 days
12 Month Warranty
Tuning & Fitment Available

Complete the job

Fast AU-Wide Shipping

Returns within 30 days

12 month warranty

Will it fit your vehicle?

MakeModelSeriesYearsEngine
Nissan————
————RB25

A dash means the listing does not narrow it down that far (for example no build dates are listed). Check with us if your vehicle was built near a model change.

Fitment listings are a guide. Not sure? Send us your rego or VIN and our team will check the part for your vehicle, before or after you order.

Check my fitmentor call(07) 5619 7869

Description

Set of 6 Wiseco Professional Series forged pistons for the Nissan RB25: 86.50 mm (3.406 in) bore, 31.50 mm (1.240 in) compression height and +8.00 cc crown volume. Rings and wrist pins are included.

What’s in the box

  • 6 forged pistons
  • 6 wrist pins (21.00 mm / 0.827 in diameter, 5115 steel, floating)
  • Piston ring set

Matching it to your Nissan RB25

Crown volume is quoted as +8.00 cc. Work out the compression ratio for your combination (chamber volume, gasket bore and thickness, deck clearance) before you order.

The bore size is the finished bore these pistons are made for, so have the block measured and then bored and honed to suit, with piston-to-wall clearance set to Wiseco’s figure for part K578M865.

Material: 2618 aluminium, the low-silicon alloy usually chosen for boosted and high-load engines (it needs more piston-to-wall clearance than 4032).

Ring grooves: 1 mm top, 1.2 mm second and 3 mm oil.

Specifications

Bore Diameter 86.50 mm
Compression Height 31.50 mm
Engine Detail Nissan RB25
Forging Type FLAT
Oil Ring Thickness 3 mm
Piston Material 2618
Piston Quantity 6
Piston Volume 8.00 cc
Ring Set Included Yes
Second Compression Ring Thickness 1.2 mm
Skirt Coating Yes
Top Compression Ring Thickness 1 mm
Wrist Pin Included Yes
Wrist Pin Material 5115
Wrist Pin Outer Diameter 0.8268 in
Wrist Pin Style Floating

Boostline conrods listed for this engine family: Boostline Connecting Rod Kit | Nissan RB26 121.5 | ARP2000, Boostline Connecting Rod Kit | Nissan RB26 121.5 | ARP625+. Match the rod length to the pistons before you order.

More: Nissan RB forged pistons · all performance pistons · Wiseco

Wiseco part number: K578M865

Shipped Australia-Wide

  • Dispatched from within Australia with tracking.
  • Available to order – usually ships in 2–3 weeks.
  • Freight is quoted after you order – we confirm the cost to your address before dispatch.
  • Delivery usually takes 2–10 business days after dispatch, depending on your location.
  • Need your tracking number? Once your order has shipped, email sales@willysworkshop.com.au with your order number and we’ll send you the carrier and tracking details.

Freight question? Call us on (07) 5619 7869.

Additional information

Make

Nissan

Warranty: 12 months from Willys Workshop

Sold and warranted by Willys Workshop. Parts carry our 12-month warranty against defects, from the date of purchase or installation (whichever is later), subject to any manufacturer terms and fair wear and tear (Terms & Conditions, clause 7.1(b)). This is in addition to your rights under the Australian Consumer Law, which cannot be excluded.

  • 30-day change-of-mind returns on eligible items: unused, uninstalled and in the original packaging, with a Return Authorisation from us first. A 15% restocking fee applies and return postage is at your cost.
  • Special-order or imported-to-order items, electrical parts, ECUs and tuners once registered, connected or flashed, parts that have been fitted or modified, and clearance items can’t be returned for change of mind. Your rights for faulty goods still apply.
  • Refunds are made to your original payment method within 14 business days of us receiving and inspecting the return.

Full details: Returns & Refund Policy and Terms & Conditions.

Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.

Big purchase? Talk to our diesel team first.
Send your rego or VIN and our Australian-based team will manually confirm fitment before you buy.
📞 Call (07) 5619 7869✉ Email us
Prefer to text your rego/VIN? 0485 885 957

Related products