Engine Oil Pump Compatible with Caterpillar 320E/320D/320D2 2006-2025 C6.6 ACERT 6.6L Diesel or C7.1 ACERT 7.1L Diesel Gerotor 21T Drive Gear 20mm Hub 28mm Gear Pair Excavator 374-7136

OEM PART NUMBERS:
- Caterpillar: 374-7136 (Primary OEM number)
- Caterpillar: 3747136 (Alternative format)
- Caterpillar: CA374-7136 (Caterpillar designation variant)

SPECIFICATIONS:
- Type: Engine Oil Pump
- Maxiforce Item: B374-7136
- Drive Type: Gear-driven
- Gear Type: Gerotor
- Drive Gear Teeth: 21
- Hub Diameter (mm): 20
- Gear Pair Size (mm): 28
- Engine Family: C6.6/C7.1 (also known as Caterpillar C6.6 ACERT, Caterpillar C7.1 ACERT, Perkins 1106C-E60TA, Perkins 1106D-70TA)
- Displacement: 6.6L (402.8 CID)
- Configuration: 6-Cylinder Inline
- Aspiration: Turbocharged and Aftercooled
- Fuel System: Common Rail Direct Injection
- Emissions Tier: ACERT

APPLICATIONS:
- Caterpillar 320E/320D/320D2/323/325 Excavator C6.6 ACERT 6.6L Diesel or C7.1 ACERT 7.1L Diesel (2006-2025)
- Caterpillar 326 Excavator C6.6 ACERT 6.6L Diesel or C7.1 ACERT 7.1L Diesel (2006-2025)
- Caterpillar 914G/924H/924HZ/928H/928HZ Wheel Loader C6.6 ACERT 6.6L Diesel or C7.1 ACERT 7.1L Diesel (2000-2025)
- Caterpillar 930H/938H Wheel Loader C6.6 ACERT 6.6L Diesel or C7.1 ACERT 7.1L Diesel (2000-2025)

CROSS-REFERENCE:
- Also fits engines known as: Caterpillar C6.6 ACERT, Caterpillar C7.1 ACERT, Perkins 1106C-E60TA, Perkins 1106D-70TA

IMPORTANT:
Gerotor oil pump fitting both Cat C6.6 ACERT (6.6L) and C7.1 ACERT (7.1L) — same base engines as Perkins 1106C-E60TA and 1106D-70TA. Drive gear: 21T, 20mm hub, 28mm gear pair — confirm specs match your existing pump.

Failure symptoms: low pressure at hot idle, valve train ticking under load, ECM derate or shutdown. ACERT emissions systems generate extreme heat — oil starvation damages DPF components. When replacing, also replace pickup tube O-ring and inspect screen — clogged screens are commonly misdiagnosed as pump failure.

⚠️ Verify 21T drive gear and 20mm hub match your existing pump.