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Fuel Injection Pump Group 1W-6539 110-7549 7N-7168 8N-9130 for Caterpillar CAT Engine 3204 3304 3304B 3306 3306B
$98.99 Add to cart
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Fuel Injection Pump Group 1W-6539 110-7549 7N-7168 8N-9130 for Caterpillar CAT Engine 3204 3304 3304B 3306 3306B

$98.99

Fuel Injection Pump Group 1W-6539 110-7549 7N-7168 8N-9130 for Caterpillar CAT Engine 3204 3304 3304B 3306 3306B

Type:Fuel Injection Pump Group, Plunger and Barrel Assembly

Replace Part Number:1W-6539,1W6539,CA1W6539,20R5285,CA20R5285,20R-5285,1107549,110-7549,7N7168,8N9130,CA7N7168,7N-7168,CA8N9130,8N-9130,CA1W6541,1W-6541,1W6541

Fit For Caterpillar CAT Engine:3204, 3304, 3304B, 3306, 3306B

Application:Fit for follwing models:ARTICULATED TRUCK:D250B, D25D, D300BCOMPACT WHEEL LOADER:910ENGINE – MACHINE:3304EXCAVATOR:215, 215B, 215C, 215D, 219D, 225, 225D, 229, 229D, 235, 235B, E180, E240, E300, E300BFELLER BUNCHER:FB518GEN SET ENGINE:3304, 3304B, 3306, 3306BINTEGRATED TOOLCARRIER:IT12, IT18, IT18B, IT28, IT28BLANDFILL COMPACTOR:816BMOTOR GRADER:120G, 12G, 130G, 140G, 143H, 14G, 160G, 160HPIPELAYER:571G, 572GSOIL COMPACTOR:815BTRACK LOADER:931B, 931C, 931C II, 935B, 935C, 935C II, 943, 953, 963, 973TRACK SKIDDER:527, D4HTSK II, D4HTSK III, D5HTSK IITRACK-TYPE TRACTOR:D3B, D3C, D3C II, D4B, D4C, D4C II, D4E, D4E SR, D4H, D4H XL, D5B, D5C, D5E, D5H, D5H XL, D6D, D6E, D6G, D6G2 XL, D6H, D7G, D7HVIBRATORY COMPACTOR:CB-534, CS-643WHEEL DOZER:814BWHEEL LOADER:916, 926, 926A, 930, 930R, 936, 936F, 950B, 950B/950E, 966C, 966D, 966F, 966F II, 972G, G910, G916, G926, G936WHEEL SCRAPER:615C, 621E, 627B, 627E, 637D, 637E, 639DWHEEL SKIDDER:508, 515, 518, 518C, 525, 528WHEEL TRACTOR:615, 627B, 627E, 627F

See Details:215 EXCAVATOR 57Y00001-UP (MACHINE) POWERED BY 3402 ENGINE215 EXCAVATOR 57Y00001-UP (MACHINE) POWERED BY 3402 ENGINE235 EXCAVATOR 64R01258-UP (MACHINE) POWERED BY 3306 ENGINE235 EXCAVATOR 64R01258-UP (MACHINE) POWERED BY 3306 ENGINED5B TRACTOR / DIRECT DRIVE / 21Y00558-UP (MACHINE) POWERED BY 3306 ENGINE950B WHEEL LOADER 63R00001-06053 (MACHINE) POWERED BY 3304 ENGINE950B WHEEL LOADER 63R00001-06053 (MACHINE) POWERED BY 3304 ENGINE973 TRACK LOADER / HIGH DRIVE / 66G00001-UP (MACHINE) POWERED BY 3306 ENGINE973 TRACK LOADER / HIGH DRIVE / 66G00001-UP (MACHINE) POWERED BY 3306 ENGINE215 EXCAVATOR 95Z00001-UP (MACHINE) POWERED BY 3304 ENGINE953 TRACK LOADER / HIGH DRIVE / 77Y01093-UP (MACHINE) POWERED BY 3204 ENGINE225 EXCAVATOR 76U03765-UP (MACHINE) POWERED BY 3304 ENGINE225 EXCAVATOR 76U03765-UP (MACHINE) POWERED BY 3304 ENGINE943 TRACK LOADER / HIGH DRIVE / 03Y01386-UP (MACHINE) POWERED BY 3204 ENGINE3306 TRUCK ENGINE (FODEN) 63Z00897-UP215B EXCAVATOR 9YB00001-UP (MACHINE) POWERED BY 3304 ENGINE215B SA EXCAVATOR 4FC00001-UP (MACHINE) POWERED BY 3304 ENGINEIT28 INTEGRATED TOOLCARRIER 8JB00001-UP (MACHINE) POWERED BY 3204 ENGINE916 WHEEL LOADER 9WB00001-UP (MACHINE) POWERED BY 3204 ENGINE1T18 INTEGRATED TOOLCARRIER 7ZB00001-UP (MACHINE) POWERED BY 3204 ENGINED5H & D5H LGP TRACTOR / POWER SHIFT / 1DD00001-03999 (MACHINE) POWERED BY 3304 ENGINED5H & D5H LGP TRACTORS / DIRECT DRIVE / 7NC00001-03999 (MACHINE) POWERED BY 3304 ENGINED6H & D6H LGP TRACTORS / POWER SHIFT / 2TG00001-03999 (MACHINE) POWERED BY 3306 ENGINE235B EXCAVATOR 4ED00001-UP (MACHINE) POWERED BY 3306 ENGINEG936 WHEEL LOADER 4ND00001-UP (MACHINE) POWERED BY 3304 ENGINED6H TRACTOR / DIRECT DRIVE / 1FJ00001-03999 (MACHINE) POWERED BY 3306 ENGINE950E WHEEL LOADER 63R06054-UP (MACHINE) POWERED BY 3304 ENGINECB-534 VIBRATORY COMPACTOR 2EG00001-UP (MACHINE) » 1W-6539 PUMP GPCS-643, CP-643, CS-653, CP-653 VIBRATORY COMPACTOR 7FD00001-UP (MACHINE) POWERED BY 3304 ENGINE120G MOTOR GRADER 11W01019-01250 (MACHINE) POWERED BY 3304 ENGINE130G MOTOR GRADER 12W00696-01081 (MACHINE) POWERED BY 3304 ENGINE140G MOTOR GRADER 13W00425-00740 (MACHINE) POWERED BY 3306DI ENGINE12G MOTOR GRADER 3WC00001-01066 (MACHINE) POWERED BY 3306 ENGINE120G Motor Grader 11W01251-UP (MACHINE) POWERED BY 3304 Engine130G MOTOR GRADER 12W01082-UP (MACHINE) POWERED BY 3304 ENGINE140G Motor Grader 13W00741-00992 (MACHINE) POWERED BY 3306 Engine931B TRACK LOADER / POWER SHIFT / 25Y00001-UP (MACHINE) POWERED BY 3204 ENGINE931B TRACK LOADER / POWER SHIFT / 29Y00001-UP (MACHINE) POWERED BY 3204 ENGINE931B LGP TRACK LOADER / POWER SHIFT / 26Y00001-UP (MACHINE) POWERED BY 3204 ENGINE931B LGP TRACK LOADER / POWER SHIFT / 30Y00001-UP (MACHINE) POWERED BY 3204 ENGINED3B TRACTOR / POWER SHIFT / 23Y00001-UP (MACHINE) POWERED BY 3204 ENGINED3B LGP TRACTOR / POWER SHIFT / 24Y00001-UP (MACHINE) POWERED BY 3204 ENGINED3 TRACTOR / POWER SHIFT / 27Y00001-05173 (MACHINE) POWERED BY 3204 ENGINED3B LGP TRACTOR / POWER SHIFT / 28Y00001-02073 (MACHINE) POWERED BY 3204 ENGINE910 WHEEL LOADER 40Y00001-UP (MACHINE) POWERED BY 3204 ENGINE910 WHEEL LOADER 41Y00001-UP (MACHINE) POWERED BY 3204 ENGINE14G MOTOR GRADER 96U04298-07045 (MACHINE) POWERED BY 3306 ENGINE235 EXCAVATOR 32K02679-UP (MACHINE) POWERED BY 3306 ENGINE235 EXCAVATOR 32K02679-UP (MACHINE) POWERED BY 3306 ENGINE235 EXCAVATOR 81X00404-UP (MACHINE) POWERED BY 3306 ENGINE235 EXCAVATOR 81X00404-UP (MACHINE) POWERED BY 3306 ENGINE12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGINE140G MOTOR GRADER 72V04231-10333 (MACHINE) POWERED BY 3306 ENGINE120G MOTOR GRADERS 87V05275-08359 (MACHINE) POWERED BY 3304 ENGINED5B TRACTOR – SPECIAL APPLICATION / DIRECT DRIVE / 26X00878-UP (MACHINE) POWERED BY 3306 ENGINED6D TRACTOR / DIRECT DRIVE / 05X00853-UP (MACHINE) POWERED BY 3306 ENGINE966D LOADER 99Y00001-05314 (MACHINE) POWERED BY 3306 ENGINE966D LOADER 99Y00001-05314 (MACHINE) POWERED BY 3306 ENGINE963 TRACK LOADER / HIGH DRIVE / 06Z00001-UP (MACHINE) POWERED BY 3304 ENGINE963 LGP TRACK LOADER / HIGH DRIVE / 11Z00001-UP (MACHINE) POWERED BY 3304 ENGINE963 LGP TRACK LOADER / HIGH DRIVE / 11Z00001-UP (MACHINE) POWERED BY 3304 ENGINE814B TRACTOR / POWER SHIFT / 16Z00001-UP (MACHINE) POWERED BY 3306 ENGINE814B TRACTOR / POWER SHIFT / 16Z00001-UP (MACHINE) POWERED BY 3306 ENGINE815B Soil Compactor 17Z00001-UP (MACHINE) POWERED BY 3306 Engine815B Soil Compactor 17Z00001-UP (MACHINE) POWERED BY 3306 Engine816B LANDFILL COMPACTOR 15Z00001-UP (MACHINE) POWERED BY 3306 ENGINE816B LANDFILL COMPACTOR 15Z00001-UP (MACHINE) POWERED BY 3306 ENGINE950B WHEEL LOADER 22Z00001-03188 (MACHINE) POWERED BY 3304 ENGINE950B WHEEL LOADER 22Z00001-03188 (MACHINE) POWERED BY 3304 ENGINE966D WHEEL LOADER 94X00001-06488 (MACHINE) POWERED BY 3306 ENGINE966D WHEEL LOADER 94X00001-06488 (MACHINE) POWERED BY 3306 ENGINE615 TRACTOR / POWER SHIFT / 46Z00001-UP (MACHINE) POWERED BY 3306 ENGINE615 TRACTOR / POWER SHIFT / 46Z00001-UP (MACHINE) POWERED BY 3306 ENGINE627B TRACTORS / POWER SHIFT / 14S01080-UP (MACHINE) POWERED BY 3306 ENGINE627B TRACTORS / POWER SHIFT / 14S01080-UP (MACHINE) POWERED BY 3306 ENGINE627B SCRAPERS 37V01060-UP (MACHINE) POWERED BY 3306 ENGINE627B SCRAPERS 37V01060-UP (MACHINE) POWERED BY 3306 ENGINE973 TRACK LOADER / HIGH DRIVE / 32Z00001-UP (MACHINE) POWERED BY 3306 ENGINE973 LGP TRACK LOADER 26Z00001-UP (MACHINE) POWERED BY 3306 ENGINE963 TRACK LOADER 18Z00001-UP (MACHINE) POWERED BY 3304 ENGINE963 TRACK LOADER 18Z00001-UP (MACHINE) POWERED BY 3304 ENGINE963 LGP TRACK LOADER 21Z00001-UP (MACHINE) POWERED BY 3304 ENGINE963 LGP TRACK LOADER 21Z00001-UP (MACHINE) POWERED BY 3304 ENGINE639D SCRAPER 88X00700-UP (MACHINE) POWERED BY 3306 ENGINE639D SCRAPER 88X00700-UP (MACHINE) POWERED BY 3306 ENGINE637D SCRAPERS 20W00495-00495 (MACHINE) POWERED BY 3306 ENGINE637D SCRAPERS 20W00495-00495 (MACHINE) POWERED BY 3306 ENGINE973 LGP TRACK-TYPE LOADER 86G00001-02999 (MACHINE) POWERED BY 3306 ENGINE973 LGP TRACK-TYPE LOADER 86G00001-02999 (MACHINE) POWERED BY 3306 ENGINE3304 Industrial Engine 10E00300-UP3304 Industrial Engine 10E00300-UP572G PIPELAYER / POWER SHIFT / 40U00971-UP (MACHINE) POWERED BY 3306 ENGINE3304 Marine Engine 13E00300-UP3304 Marine Engine 13E00300-UP3306 Generator Set 85Z00001-037633306 Generator Set 85Z00001-037633306 Marine Engine 84Z00001-UP3304 GENERATOR SET ENGINE 83Z00001-030953304 GENERATOR SET ENGINE 83Z00001-03095D7G LGP TRACTOR / POWER SHIFT / 72W00608-UP (MACHINE) POWERED BY 3306 ENGINE

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Fuel Injection Pump Group 1W-6539 110-7549 7N-7168 8N-9130 for Caterpillar CAT Engine 3204 3304 3304B 3306 3306B
$98.99

Fuel Injection Pump Group 1W-6539 110-7549 7N-7168 8N-9130 for Caterpillar CAT Engine 3204 3304 3304B 3306 3306B

This fuel pump is engineered as a direct replacement for the Caterpillar CAT Engine 3204 3304 3304B 3306 3306B. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.

Vehicle Compatibility

Application Details
Caterpillar See product specifications
CAT Engine 3204 3304 3304B 3306 3306B Type:Fuel Injection Pump Group, Plunger and Barrel Assembly Replace Part Number:1W 6539,1W6539,CA1W6539,20R5285,CA20R5285,20R-5285,1107549,110-7549,7N7168,8N9130,CA7N7168,7N-7168,CA8N9130,8N-9130,CA1W6541,1W-6541,1W6541 Fit For

Replaces OEM Part Numbers

1W-6539 • 1W6539 • CA1W6539 • 20R5285 • CA20R5285 • 20R-5285 • 1107549 • 110-7549 • 7N7168 • 8N9130 • CA7N7168 • 7N-7168

Signs You Need a Replacement

If your equipment is showing any of these symptoms, the injection pump may be the cause:

  • Engine cranks but won’t start — The pump may have lost prime or stopped delivering fuel. Check for fuel at the filter outlet before replacing the pump.
  • Stalling under load — A weak pump can’t maintain pressure at high demand. The engine runs fine at idle but dies when you put it to work.
  • Fuel pressure warning (if equipped) — Modern Caterpillar equipment monitors fuel rail pressure. A low-pressure warning often means the pump is failing.
  • Loud whining from fuel system — A failing pump makes a high-pitched whine that gets louder as it warms up. Normal pump noise is a low hum.
  • Air in fuel lines — If you see bubbles in the transparent fuel line or the primer bulb won’t stay firm, the pump may be drawing air through a worn seal.
  • Excessive return flow — Too much fuel returning to the tank instead of reaching the injectors indicates internal pump wear.

Before You Replace the Pump

Before replacing the pump, check the fuel filter and fuel lines for restrictions. A blocked filter causes the same symptoms as a failing pump on Caterpillar equipment. When installing the new pump, fill it with clean fuel before connecting the lines — this reduces priming time and prevents dry-run damage. After installation, bleed the system fully and check for leaks at all connection points. Replace the fuel filter at the same time as the pump to protect the new unit from debris.

Frequently Asked Questions

Will this fit my Caterpillar 3204?
Yes. This part is designed to fit the Caterpillar 3204, 3304, 3304B, 3306 among other models listed in the compatibility table above. Verify your specific model and engine code before ordering to ensure the correct fit.

Can I cross-reference 1W-6539 with 1W6539?
Yes. Both 1W-6539 and 1W6539 are interchangeable OEM numbers for this part. They refer to the same component with the same specifications, just different part number revisions.

How do I check if my engine code (IT12, IT18, IT18B, IT28) matches?
The engine code is stamped on a metal tag attached to the engine block, usually near the timing belt cover or on the cylinder head. Compare the code you find with the list above. Engine codes are 3 to 6 characters long.

My vehicle is a 0001 model – is it covered?
The compatibility range for this part includes 0001-0605. The 0001 model year falls within this range, but verify the engine code and body type match. Mid-year production changes sometimes mean two vehicles from the same model year use different parts.

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