Wiseco Professional Nissan RB25DET Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 14.00 CC
Wiseco Professional Nissan RB25DET Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 14.00 CC
Wiseco Professional Nissan RB25DET Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 14.00 CC
Wiseco Professional Nissan RB25DET Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 14.00 CC

Key specs

Bore Diameter
86.50 mm
Compression Height
31.50 mm
Engine Detail
Nissan RB25DET
Forging Type
Full Round
Oil Ring Thickness
2.8 mm
Piston Material
2618

Have it fitted at Willys

We fit parts at our Oxley and Warana workshops. Order the part and we'll book you in, or ask for a fitted price first.

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Check fitment by rego or VIN
  • Returns within 30 days
  • 12 month warranty
  • Fitting available

Wiseco Engine Internals Performance Pistons Nissan RB Forged Pistons

Wiseco Professional Nissan RB25DET Piston Set of 6 - 86.50 mm Bore - 31.50 mm CH, 14.00 CC

SKU WPC-K578M865APMPN K578M865AP
  • Fits Skyline R34
  • Fits Skyline R33
  • Fits RB25DET

$2,126.82

Including GST

Available to order – usually ships in 2-3 weeks

Available to order – usually ships in 2-3 weeks
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.
Freight quoted after you order - we confirm the cost to your address before dispatch
Pick up from our workshops291 Cliveden Ave, Oxley (Brisbane) or 29 Production Ave, Warana (Sunshine Coast). Monday to Friday, 8am to 5pm.
Returns within 30 daysUnused and uninstalled, in the original packaging, with a return authorisation from us first. A 15% restocking fee applies and return postage is at your cost. Your Australian Consumer Law rights are not affected. Returns policy
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Willys Workshop · Oxley & Warana, QLD

Zip and humm are available over the phone: (07) 5619 7869

Will it fit your vehicle?

MakeModelSeriesYearsEngine
Nissan———RB25DET
NissanSkylineR34May 1998 – Aug 2002RB25DET
NissanSkylineR33 (1993-1998)Aug 1993 – Nov 1998RB25DET

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 7869or text0485 885 957oremail us

Bore 86.50 mm · Compression height 31.50 mm · Volume 14.00 cc · Set of 6 · rings included · wrist pins included

Description

Set of 6 Wiseco Professional Series forged pistons for the Nissan RB25DET: 86.50 mm (3.406 in) bore, 31.50 mm (1.240 in) compression height and +14.00 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 RB25DET

Crown volume is quoted as +14.00 cc: a positive figure means a dome that takes volume out of the combustion chamber. 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 K578M865AP.

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

Forging: full-round design, with a coated skirt.

Ring grooves: 1.0 mm top, 1.2 mm second and 2.8 mm oil.

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: K578M865AP

Specifications

Bore Diameter86.50 mm
Compression Height31.50 mm
Engine DetailNissan RB25DET
Forging TypeFull Round
Oil Ring Thickness2.8 mm
Piston Material2618
Piston Quantity6
Piston Volume14.00 cc
Ring Set IncludedYes
Second Compression Ring Thickness1.2 mm
Skirt CoatingYes
Top Compression Ring Thickness1.0 mm
Wrist Pin IncludedYes
Wrist Pin Material5115
Wrist Pin Outer Diameter0.827 in
Wrist Pin StyleFloating
BrandWiseco
SKUWPC-K578M865AP
MPNK578M865AP

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.
  • Wrong fit: if a part covered by our Fitment Guarantee doesn’t fit, we pay the return freight both ways and there’s no restocking fee.
  • 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.

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.

Complete the job

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