Don’t know your sizes yet?
You don’t need them to order. These are machined to your engine, so
pick STD for now. We confirm the sizes with you before anything ships.
Once your machinist has measured the crank, send us the numbers and we’ll set the kit to match.
Not measured yet? Send a photo of the machine shop docket. That’s all we need.
What do STD, 0.25 and 0.50 mean?
Will it fit your vehicle?
This part is listed to suit:
Fitment listings are a guide. For a guaranteed match, send us your rego or VIN and our team will confirm the exact part before you pay.
Check my fitmentor call(07) 5619 7869
Description
This piston-ring set restores compression, oil control and bore sealing across all cylinders of the Mitsubishi 4G61 1.6L 4Cyl DOHC 16V.
Supplied by Willys Workshop — RIK, a Japanese piston-ring manufacturer producing OEM-spec rings for Japanese and Korean engine families.
- Japanese-engineered to factory tolerances
- OEM-equivalent fitment
- Used in NVP’s own production rebuilds
Manufacturer part number: A1937
This part is listed to suit the Mitsubishi 4G61 1.6L 4Cyl DOHC 16V – always confirm against your engine code or VIN before ordering, and our team can verify the correct part for your build. Shipped Australia-wide or fitted in-store at our Oxley (Brisbane) and Warana (Sunshine Coast) workshops, where we carry out full engine rebuilds.
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Same-day dispatch on in-stock orders placed before 11am AEST, Monday–Friday.
- Shipping is calculated at checkout based on size, weight and your delivery address.
- Estimated delivery 2–7 business days depending on your location.
Freight question? Call us on (07) 5619 7869.
This piston-ring set restores compression, oil control and bore sealing across all cylinders of the Mitsubishi 4G61 1.6L 4Cyl DOHC 16V.
North Vic Parts — 100% Fitment Guarantee
North Vic Parts back every engine-rebuild component with their 100% Fitment Guarantee:
- Parts tested in-house across 2,000+ engine rebuilds per year
- OEM-equivalent fitment on bearings, gaskets, rings, pumps, valve-train
- Trusted brands distributed: TDC, ACL, NPR, OSK, TP, KP, Victor Reinz, Permaseal, NDC, Taiho, NPW, Athena, ARP, FAI, Enginetech, RIK, JCC, Yenmak, Dayco, Crow Cams, YSK
- Notify within 7 days of delivery of any defect
- Backed by Australian Consumer Law statutory guarantees
Workshop assembly & engine-build support available at Willys.
Read the full North Vic Parts warranty terms →
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.
