# 3912146CN Cummins 3912146CN / CAT 113-1113 (ZF Transmission) Gear Oil Cooler 3" X 9" Replacement

Transmission / Gear Oil Cooler 3" x 9".

Commonly used on CAT 3126 with ZF transmission. Can be used on ZF 220, 260, 280. Rated for 475 psi (ZF spec).

Direct replacement to Cooler Caterpillar 113-1113, 164-5583 and Sen Dure 9660-1-07

Used on Cummins 6CTA8.3 400/420/430/ 450 Diamon Cummons P/n 3912146

Used with ZF Transmission Models ZF260, ZF280, ZF220A, ZF260, ZF280, ZF220A

Includes two zinc anodes and drain plug. Ref 9-032 for Anode

Diameter 3" 76mm

Bundle Length 9" 228.6 mm

Overall Length 13.5" 343 mm

Seawater Connections 1-3/4" 45mm

Oil Connections 1/2" NPT

This is a Mr Cool (USA) marine part MRC3912146CN

## Details

- **Price:** 990.0 AUD
- **Vendor:** Mr Cool
- **Tags:** Sawley’s AAM Aftermarket – Cooling Systems Mr Cool | Marine Heat Exchangers & Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 990.00 AUD | In stock |

## Images

- 3912146CN Cummins 3912146CN / CAT 113-1113 (ZF Transmission) Gear Oil Cooler 3" X 9" Replacement
- 3912146CN Cummins 3912146CN / CAT 113-1113 (ZF Transmission) Gear Oil Cooler 3" X 9" Replacement
- 3912146CN Cummins 3912146CN / CAT 113-1113 (ZF Transmission) Gear Oil Cooler 3" X 9" Replacement

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3912146cn-cummins-3912146cn-cat-113-1113-zf-transmission-gear-oil-cooler-3-x-9-replacement)
> Updated: 2026-06-23