Direct Replacement Fuel Pump — 12V OEM-Spec for Caterpillar D-Series Compact Track Loaders & Skid Steers

One part number, seven Cat D-Series machines. The 345-3520 covers the 226D, 236D, 239D, 242D, 257D, 272D, and 289D — Caterpillar’s compact track loader and skid steer lineup that dominates landscaping, site prep, and utility construction work. These machines run hard in tight spaces and demanding conditions, and the fuel pump is what keeps the engine fed through every bucket load and grading pass. When it weakens, you get hard starts, power loss under load, and the fuel starvation that sidelines a machine mid-job. This direct-fit 12V replacement pump (345-3520 / 3453520) restores factory fuel pressure and flow across all seven D-Series models, getting your Cat compact equipment back to productive operation.

✅ Direct-Fit Compatibility

• Caterpillar Compact Track Loaders: 239D, 249D, 257D, 272D, 289D
• Caterpillar Skid Steer Loaders: 226D, 236D, 242D
• Voltage: 12V
• Bolt-on replacement — no modifications required
• Suitable for landscaping, site preparation, utility construction, and rental fleet applications

🔧 Built for Cat Compact Equipment Demands

• OEM-matched flow rate & pressure — consistent fuel delivery for full engine output through every work cycle
• 100% new aftermarket — not rebuilt or remanufactured; starts with a full service life
• 12V specification — correct voltage for Cat compact equipment electrical systems
• Dual OEM cross-reference — covers both 345-3520 and 3453520 formats for confirmed fitment confidence
• Seven-model D-Series coverage — one part number spans Cat’s full compact track loader and skid steer D-Series lineup
• No dealer markup — OEM-equivalent quality at a fraction of Cat dealer pricing

📦 What's Included

• 1 × Fuel Pump 12V (345-3520 / 3453520)

🔑 Key Specs

• Part Numbers: 345-3520, 3453520
• Voltage: 12V
• Condition: 100% New Aftermarket
• Fitment: Cat 226D / 236D / 239D / 242D / 257D / 272D / 289D

Seven Cat machines, one pump. Order today — in stock and ready to ship.