MA31 – Cummins 3963990 is an OEM 12 mm sealing washer used on banjo-bolt and fluid-fitting connections. Current Cummins application listings show it on 5.9L Cummins fuel-system banjo fittings, with two washers typically used per banjo bolt. 12 mm I.D. × 18.3 mm O.D. × 1.2 mm thick.
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MA31 – Cummins 3963990 is an OEM 12 mm sealing washer used on banjo-bolt and fluid-fitting connections. Current Cummins application listings show it on 5.9L Cummins fuel-system banjo fittings, with two washers typically used per banjo bolt.
12 mm I.D. × 18.3 mm O.D. × 1.2 mm thick.
| Weight | .3 lbs |
|---|---|
| Dimensions | 3 × 3 × 1 in |
Product identification
Products explicitly described as “Genuine OEM” are genuine original equipment manufacturer parts. Other references to OEM names, part numbers, or model numbers are provided to identify compatibility and do not imply that a product is OEM.
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