3779087 BELT TENSIONER Caterpillar parts
120M, 12M, 2470C, 416E, 416F, 420E, 420F, 422E, 422F, 428E, 428F, 430F, 432E, 432F, 434E, 434F, 442E, 444E, 444F, 450E, 553C, 613G, 938H, 953D, 963D, C6.6, CB-54B, CS-54B, CS-56B, CS-68B, CS-74B, CS-7...
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Alternative (cross code) number:
CA3779087
377-9087
3779087
CA3779087
377-9087
3779087
Weight: 3 pounds 1 kg.
BACKHOE LOADER, WHEEL TRACTOR-SCRAPER,
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US$56.18
14 Jul 2025
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377-9087 BELT TENSIONER Suitable For Caterpillar 3779087
KMP BRAND Suitable for Caterpillar
KMP BRAND Suitable for Caterpillar
Belt Tensioner 3779087 Alloy Steel Anti Shock Drive Belt Tensioner Assembly for Caterpillar E312D2 416E 416F 420E 420F 422E 422F Heavy Duty Construction Equipment
plplaaoo [ FIT] This belt tensioner is specifically designed for Caterpillar E312D2, 416E, 416F, 420E, 420F, 422E, and 422F. Engineered to match the exact specifications of these , it ensures a seamless fit and optimal performance. The robust construction guarantees durability, making it to wear and tear even under the toughest conditions. || [STABLE & QUIET] Experience smoother engine operation with our belt tensioner that eliminates engine shaking and reduces strange noises. Its advanced design automatically adjusts the belt tension, maintaining consistent engine power. The vibration damping system ensures the belt remains at optimal tension, enhancing overall vehicle performance and reliability. || [ MATERIAL] Crafted from premium alloy steel, this belt tensioner undergoes surface quenching and heat treatment to significantly improve hardness, wear resistance, and fatigue strength. These processes ensure the tensioner can withstand high stress and prolonged use, making it a reliable choice for heavy-duty applications. || [ENHANCED PERFORMANCE] The tensioner's vibration damping system not only increases tension but also reduces energy to frequencies, ensuring the belt stays in condition. This feature minimizes belt slippage and extends the lifespan of both the belt and the tensioner, providing long-term savings and fewer replacements. || [DESIGNED FOR RELIABILITY] Every component of this belt tensioner is meticulously designed and manufactured to match the performance of your vehicle. The standard size ensures a fit, while the high-quality materials and precise engineering provide peace of mind. Trust this tensioner to keep your engine running smoothly and efficiently.
plplaaoo [ FIT] This belt tensioner is specifically designed for Caterpillar E312D2, 416E, 416F, 420E, 420F, 422E, and 422F. Engineered to match the exact specifications of these , it ensures a seamless fit and optimal performance. The robust construction guarantees durability, making it to wear and tear even under the toughest conditions. || [STABLE & QUIET] Experience smoother engine operation with our belt tensioner that eliminates engine shaking and reduces strange noises. Its advanced design automatically adjusts the belt tension, maintaining consistent engine power. The vibration damping system ensures the belt remains at optimal tension, enhancing overall vehicle performance and reliability. || [ MATERIAL] Crafted from premium alloy steel, this belt tensioner undergoes surface quenching and heat treatment to significantly improve hardness, wear resistance, and fatigue strength. These processes ensure the tensioner can withstand high stress and prolonged use, making it a reliable choice for heavy-duty applications. || [ENHANCED PERFORMANCE] The tensioner's vibration damping system not only increases tension but also reduces energy to frequencies, ensuring the belt stays in condition. This feature minimizes belt slippage and extends the lifespan of both the belt and the tensioner, providing long-term savings and fewer replacements. || [DESIGNED FOR RELIABILITY] Every component of this belt tensioner is meticulously designed and manufactured to match the performance of your vehicle. The standard size ensures a fit, while the high-quality materials and precise engineering provide peace of mind. Trust this tensioner to keep your engine running smoothly and efficiently.
IEQFUE Belt Tensioner 377-9087 3779087 Compatible with Caterpillar C4.4 C6.6 C7.1 815 815K 816 816K 910M 914M 918M 924K 525D 535D 545D 555D
IEQFUE 【Part Name】Belt Tensioner || 【Part Number】377-9087 3779087 || 【Application Models For】Compatible with Caterpillar Paving Compactor CB-54B, CB-64B, CB-66B, CB-68B, CB10, CB13, CB15, CB16, CB7, CB8, CP-56B, CCS9, CP-54B, CP-68B, CP-74B, CP44B, CP54B, CP56B, CP68B, CP74B, CP76B, CS-54B, CS-56B, CS-64B, CS-66B, CS-68B, CS-74B, CS-76B, CS-78B, CS44B, CS54B, CS56B, CS64B, CS66B, CS68B, CS74B, CS76B, CS78B, CS79B, CW-34, CW12, CW34 || 【Application Models For】Compatible with Caterpillar Excavator M314, M314F, M315, M315F, M316, M316F, M317, M317F, M318, M318F, M319, M320, M320F, M322F, M323F, MH3040, 312E L, 312F, 313D2 GC, 313D2-GC, 313F, 314E CR LCR, 314F, 315F, 316E, 316F, 317, 318D2, 318E, 318F, 320 GX, 320D2, 320F, 323, 323F LN OEM SA, 323GC, 325, 325F, 326, 326GC, 330, 330GC, 333, 336, 335 || 【Application Models For】Compatible with Caterpillar Telehandler TH336C, TH337C, TH3510D, TH357D, TH407C, TH406C, TH408D, TL1055, TL1055D, TL1255, TL1255D, TL642, TL642D, TL943, TL943D || 【Specification】Dimension: 7.87 L x 3.93 W x 3.54 H inches;Weight: 3.84 Pounds
IEQFUE 【Part Name】Belt Tensioner || 【Part Number】377-9087 3779087 || 【Application Models For】Compatible with Caterpillar Paving Compactor CB-54B, CB-64B, CB-66B, CB-68B, CB10, CB13, CB15, CB16, CB7, CB8, CP-56B, CCS9, CP-54B, CP-68B, CP-74B, CP44B, CP54B, CP56B, CP68B, CP74B, CP76B, CS-54B, CS-56B, CS-64B, CS-66B, CS-68B, CS-74B, CS-76B, CS-78B, CS44B, CS54B, CS56B, CS64B, CS66B, CS68B, CS74B, CS76B, CS78B, CS79B, CW-34, CW12, CW34 || 【Application Models For】Compatible with Caterpillar Excavator M314, M314F, M315, M315F, M316, M316F, M317, M317F, M318, M318F, M319, M320, M320F, M322F, M323F, MH3040, 312E L, 312F, 313D2 GC, 313D2-GC, 313F, 314E CR LCR, 314F, 315F, 316E, 316F, 317, 318D2, 318E, 318F, 320 GX, 320D2, 320F, 323, 323F LN OEM SA, 323GC, 325, 325F, 326, 326GC, 330, 330GC, 333, 336, 335 || 【Application Models For】Compatible with Caterpillar Telehandler TH336C, TH337C, TH3510D, TH357D, TH407C, TH406C, TH408D, TL1055, TL1055D, TL1255, TL1255D, TL642, TL642D, TL943, TL943D || 【Specification】Dimension: 7.87 L x 3.93 W x 3.54 H inches;Weight: 3.84 Pounds
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2023-03-14
2020-05-26
2019-12-05
2017-04-05
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Compatible equipment models: 3779087:
Information:
Removal Procedure
Illustration 1 g01154273
Disconnect harness assemblies (2) from speed/timing sensors (1).
Illustration 2 g01154272
Remove bolt (3) and bracket (4). Remove speed/timing sensors (1). Remove the O-ring seals from speed/timing sensors (1). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5P-3975 Rubber Lubricant 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g01154272Note: Check the O-ring seals for wear or for damage. If necessary, replace the O-ring seals.
Apply Tooling (A) to the O-ring seals prior to installation. Install speed/timing sensors (1).
Position bracket (4) and install bolt (3). Tighten bolt (3) to a torque of 28 7 N m (21 5 lb ft).
Illustration 4 g01154273
Connect harness assemblies (2) onto speed/timing sensors (1).
Illustration 1 g01154273
Disconnect harness assemblies (2) from speed/timing sensors (1).
Illustration 2 g01154272
Remove bolt (3) and bracket (4). Remove speed/timing sensors (1). Remove the O-ring seals from speed/timing sensors (1). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5P-3975 Rubber Lubricant 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g01154272Note: Check the O-ring seals for wear or for damage. If necessary, replace the O-ring seals.
Apply Tooling (A) to the O-ring seals prior to installation. Install speed/timing sensors (1).
Position bracket (4) and install bolt (3). Tighten bolt (3) to a torque of 28 7 N m (21 5 lb ft).
Illustration 4 g01154273
Connect harness assemblies (2) onto speed/timing sensors (1).
Cat SIS web machinery list:
Parts belt Caterpillar catalog:
3126B, 416E, 420E, 422E, 428E, 430E, 432E, 434E, 442E, 444E, C7
416E, 420E, 422E, 428E, 430E, 432E, 434E, 442E, 444E
450E, C4.4
416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F
C4.4, C6.6
120K, 120K 2, 12K, 12M, 140K, 140K 2, 160K, 3126, 3126B, 3126E, 573, 584, 814F II, 815F II, 816F II, 938H, 953D, 963D, 973D, AP-600D, AP-655D, AP555E, BG500E, BG600D, BG655D, C-9, C6.6, C7, C9, CX31-C...
950H, 962H, 966G II, 972G II, C15, D5R LGP, D6N, IT62H
C4.4, D4K XL, D5K LGP
120M, 12M, 140M, 160M, D6N LGP
120M, 12M, 938H, IT38H
938H, IT38H
950G II, 962G II, CB-54B, CS-56B, CS-68B, CS-74B, CS-78B, CW-34
3126B, 416E, 420E, 422E, 428E, 430E, 432E, 434E, 442E, 444E, C7
924H, 924HZ, 928HZ, TH220B, TH330B
2575523
BELT-SERPENTINE
TH220B, TH330B
TH220B, TH330B
TH220B, TH330B, TH340B, TH350B, TH355B, TH460B, TH560B, TH580B
C7.1, TH220B, TH330B, TH340B, TH350B, TH355B, TH460B, TH560B, TH580B
TH220B, TH330B, TH350B, TH355B, TH460B, TH560B, TH580B
430E, C4.4, C6.6
430E, 938H, C6.6
450E, C4.4
2831171
BELT-SERPENTINE
450E, C4.4, C6.6, C7.1
450E, C4.4, C6.6, C7.1
416E, 420E, 422E, 428E, 430E, 432E, 434E, 442E, 444E
312D2, 312D2 GC, 312D2 L, 313D2, 313D2 LGP, 318D2 L, 416E, 416F, 420E, 420F, 422E, 422F, 428E, 428F, 430E, 430F, 432E, 432F, 434E, 434F, 442E, 444E, 444F, 450E, 450F, 559, 924K, 930K, 938K, AP-300D, A...