Komatsu 3678925 O-RING

Komatsu 3678925 O-RING

Komatsu 3678925 O-RING is a WQC Parts aftermarket replacement part for Komatsu heavy equipment. It is intended for sealing, repair, and maintenance applications where the part number, machine model, and serial range match the required application.

Part Information

• Komatsu part number: 3678925
• WQC SKU: KM-3678925
• Product type: O-Ring

Known machine usage: 150A/FA, BP500-7-M1, BR120T, BR200S, BR250RG, BR300S-1B, BR300S-2-M1, BR350JG, BR380JG, BR380JG-1-M1, BR380JG-1E0, BZ210, D31A, D31AM, D31E, D31EX, D31EX-21A-M, D31P, D31P-20A, D31P-20T, D31PG-20A, D31PL, D31PLL, D31PX, D31PX-21A, D31PX-21A-M, D32E-1/P, D32E-1A/P-1A, D37E, D37EX, D37EX-21A, D37EX-21A-M, D37EXI, D37P-5A, D37PG-5A, D37PX, D37PX-21A, D37PX-21A-M, D37PXI, D38E-1/P, D38E-1A/P-1A, D39E-1/P, D39E-1A/P-1A, D39EX, D39EX-21A, D39EX-21A-M, D39EXI, D39PX, D39PX-21A, D39PX-21A-M, D39PXI, D41E, D41E-6K, D41E-BB-6C, D41E6T, D41P, D41P-6K, D41PF-6K, D41PF-6K-T2, D475A, D475A-3-HD, D475A-3-SC, D475A-5A, D475A-5E0, D475ASD-5E0, D51EX/PX, D51EXI/PXI, D61EX-15E0-BW, D61PX-15E0-BW, D63E, D65EX, D65EX-15E0, D65EXI, D65PX, D65PX-15E0, D65PXI, D65WX, D65WX-15E0, D68ESS-12E0, D85ESS, FORK LIFT TRUCKS, FORKLIFT ENGINES, HB205, HB215LC, HB335, HB335LC, HB365, HB365LC, HD465, HD605, HD785, HD785-5LC, HD785-5LC A10224, A10228 - A10315 KOMATSU (BEPB010709) BFP42, HD985, JV100A-2T, JV100WA, JV100WA-2T, JV100WP, JV100WP-2T, JV130WH, NEW (CHINA AND OTHER), PC100, PC100-6S, PC100-6Z, PC100L, PC100N, PC118MR, PC120, PC120-6E0, PC120-6E0-T2, PC120-6H, PC120-6J, PC120-6S, PC120-6Z, PC120-6Z-A1, PC120LC, PC120LC-6E0, PC120SC, PC128US, PC128UU, PC130, PC130-6E0-T2, PC130-6G, PC138US, PC138USLC, PC158US, PC158USLC, PC160LC, PC160LC-7-E0, PC160LC-7E0, PC160LC-7K, PC160LC-7K-KA, PC180LC-7-E0, PC180LC-7K, PC180NLC-7-E0, PC180NLC-7K, PC195LC, PC200, PC200-6H, PC200-6S, PC200LC-6S, PC200-6Z, PC200-7-AA, PC200-7-AP, PC200-8E0, PC2000, PC200CA, PC200EL-6K, PC200EN-6K, PC200LC, PC200LC-6H, PC200LC-6LE, PC200LC-6Z, PC200LC-7-BA, PC200LC-7-BP, PC200LC-7B, PC200LC-8E0, PC200LL, PC200LL-7L, PC200SC-7-M1, PC210, PC210-6D, PC210-6K, PC210-7-CA, PC210-7-CG, PC210-7K, PC210-8K, PC210LC, PC210LC-6K, PC210LC-7-DA, PC210LC-7-DG, PC210LC-7K, PC210LC-8K, PC210NLC-7K, PC210NLC-8K, PC220, PC220-6Z, PC220-7 SERIAL NO.DBH0001 AND UP, PC220LC-7 SERIAL NO.DBJ0001 AND UP, PC220-7-AA, PC220LC, PC220LC-6LE, PC220LC-6Z, PC220LC-7-BA, PC220LC-7L, PC220LL, PC220LL-7L, PC228US, PC228US-1-TN, PC228US-1T, PC228US-3-AA, PC228US-3-AB, PC228US-3-AG, PC228US-3-AP, PC228US-3-YA, PC228US-3-YB, PC228US-3-YG, PC228US-3-YP, PC228US-3E0, PC228US-3N-YA, PC228US-3N-YB, PC228US-3N-YP, PC228US-3T-YT, PC228US-3U, PC228USLC, PC228USLC-1-TN, PC228USLC-3-AA, PC228USLC-3-AB, PC228USLC-3-AP, PC228USLC-3-YA, PC228USLC-3-YB, PC228USLC-3-YP, PC228USLC-3E0, PC228USLC-3N-YA, PC228USLC-3N-YB, PC228USLC-3N-YP, PC228USLC-3S, PC228USLC-3U, PC228UU, PC228UU-1-MO, PC228UU-1-TN, PC230, PC230-7-AA, PC230-7-CG, PC230LC, PC230LC-7-BA, PC230LC-7-DG, PC230NHD-7K, PC230NHD-8K, PC240-6K, PC240LC, PC240LC-6K, PC240LC-7K, PC240LC-8K, PC240NLC-6K, PC240NLC-7K, PC240NLC-8K, PC250, PC250HD-6Z, PC250LC, PC250LC-6LE, PC270, PC270-7-AG, PC270LC, PC270LC-6LE, PC270LC-7L, PC270LC-8-W1, PC270LC-8N1-W1, PC270LL-7L, PC290LC, PC290LC-6K, PC290LC-7K, PC290NLC-6K, PC290NLC-7K, PC300, PC300-7 SERIAL NUMBERS : J20001-UP, PC300-7-AA, PC300-7E0, PC300HD, PC300HD-7E0, PC300HD-7L, PC300LC, PC300LC-7-BA, PC300LC-7E0, PC300LC-7L, PC300LL-7E0, PC300LL-7L, PC308USLC, PC308USLC-3E0, PC308USLC-3E0-W1, PC340LC-7K, PC340LC-7K-E0, PC340NLC-7K, PC340NLC-7K-E0, PC350, PC350-7-AA, PC350-7E0, PC350HD, PC350LC, PC350LC-7-BA, PC350LC-7E0, PC350LL-7E0, PC350NLC, PC360, PC360LC, PC360LCI, PC360NLC, PC380LC-7K, PC390LC, PC390LL-10 A50601 & UP, PC60, PC70, PC75UD, PC75US, PC75UU, PC78US, PC78UU, PC88MR, PW118MR, PW128UU, PW130-7K, PW130ES-6K, PW150ES-6K, PW160, PW160-7E0, PW160-7K, PW170ES-6K, PW170ES-6K-KA, PW180-7E0, PW180-7K, PW200, PW200-7E0, PW200-7K, PW200-7K-KA, PW220-7E0, PW220-7H, PW220-7K, PW220-7K-KA, S6D102E-1AB, S6D102E-1AC, S6D102E-1BB, S6D102E-1BB-6C, S6D102E-1BB-A, S6D102E-1BB-C, S6D102E-1C, S6D102E-1C-6C, S6D102E-1C-6Z, S6D102E-1C-CA, S6D102E-1C-TA, S6D102E-1C-US, S6D102E-1C-Z, S6D102E-1D-, S6D102E-1DD, S6D102E-1E, S6D102E-1E-, S6D102E-1EE, S6D102E-1F, S6D102E-1F-6S, S6D102E-1F-6U, S6D102E-1F-S2, S6D102E-1F-US, S6D102E-1F-UT, S6D102E-1FL-6S, S6D102E-1FL-S2, S6D102E-1J, S6D102E-1K, S6D102E-1M, S6D102E-1Q, S6D102E-1T, S6D102E-1W-6A, S6D102E-1W-6L, S6D102E-1W-6P, S6D102E-1W-A, S6D102E-1W-D, S6D102E-1W-L, S6D102E-1W-PT, S6D102E-1X, S6D102E-1X-6L, S6D102E-1X-L, S6D102E-D-1F-6S, S6D102E-D-1FL-6S, SA12V140-1A-A, SA12V140-1C, SA12V140-1C-A, SA12V140-1D, SA12V140-1D-A, SA12V140-1E-A, SA12V140-1Q, SA12V140-1Q-A, SA12V140-1R, SA12V140-1R-A, SA12V140-1S, SA12V140-1S-A, SA12V140-1S-DA, SA12V140-1S-TA, SA12V140-1S-WA, SA12V140-1S-WD, SA12V140-1U, SA12V140-1U-9A, SA12V140-1U-A, SA6D102E, SA6D102E-1-GD, SA6D102E-1AB, SA6D102E-1AC, SA6D102E-1B, SA6D102E-1B-7C, SA6D102E-1B-C, SA6D102E-1C, SA6D102E-1C-7Z, SA6D102E-1C-Z, SA6D102E-1G, SA6D102E-2-B, SA6D114E, SA6D114E-2-TR, SAA12V140E-3A, SAA12V140E-3B, SAA12V140E-3C, SAA12V140E-3D, SAA12V140E-3E, SAA12V140Z-E2, SAA4D102E-2-PW, SAA4D102E-2-W3, SAA4D102E-2-W5, SAA4D102E-2-W6, SAA4D102E-2A, SAA4D102E-2A-B4, SAA4D102E-2A-B5, SAA4D102E-2B, SAA4D102E-2B-B4, SAA4D102E-2B-B5, SAA4D102E-2C, SAA4D102E-2C-B4, SAA4D102E-2C-B5, SAA4D102E-2D, SAA4D102E-2E, SAA4D102E-2E-B4, SAA4D102E-2E-PC, SAA4D102E-2F, SAA4D102E-2G, SAA4D107E-1A-W, SAA4D107E-1A-WK, SAA4D107E-1AA, SAA4D107E-1B, SAA4D107E-1B-W, SAA4D107E-1C, SAA4D107E-1C-W, SAA4D107E-1D, SAA4D107E-1E, SAA4D95LE, SAA4D95LE-5A, SAA4D95LE-5AA, SAA4D95LE-5BB, SAA4D95LE-5D, SAA4D95LE-5E, SAA4D95LE-5G, SAA4D95LE-5J, SAA4D95LE-5L-W, SAA4D95LE-5LW-W, SAA4D95LE-5N-W, SAA4D95LE-5Q, SAA4D95LE-5R, SAA4D95LE-6A, SAA4D95LE-6B, SAA4D95LE-6D, SAA4D95LE-6E, SAA4D95LE-7A, SAA4D95LE-7AA, SAA4D95LE-7BB, SAA4D95LE_5A, SAA6D102E, SAA6D102E-2, SAA6D102E-2-PW, SAA6D102E-2A, SAA6D102E-2AA, SAA6D102E-2B, SAA6D102E-2BB, SAA6D102E-2C, SAA6D102E-2C-KU, SAA6D102E-2CC, SAA6D102E-2D, SAA6D102E-2DD, SAA6D102E-2E, SAA6D102E-2EE, SAA6D102E-2F, SAA6D102E-2FF, SAA6D102E-2G, SAA6D102E-2JJ, SAA6D102E-2L, SAA6D102E-2LL, SAA6D107E-1A, SAA6D107E-1AA-W, SAA6D107E-1B, SAA6D107E-1B-W, SAA6D107E-1B-W1, SAA6D107E-1B-WK, SAA6D107E-1BA, SAA6D107E-1C, SAA6D107E-1C-W, SAA6D107E-1C-W1, SAA6D107E-1C-WK, SAA6D107E-1CA, SAA6D107E-1CC, SAA6D107E-1D, SAA6D107E-1D-W, SAA6D107E-1DA, SAA6D107E-1DD, SAA6D107E-1E, SAA6D107E-1E-W, SAA6D107E-1E-W1, SAA6D107E-1EA, SAA6D107E-1F, SAA6D107E-1F-W, SAA6D107E-1G-W, SAA6D107E-1G-WK, SAA6D107E-1H, SAA6D107E-1H-W, SAA6D107E-1J, SAA6D107E-1J-W, SAA6D107E-1JA, SAA6D107E-1K, SAA6D107E-1KB-W, SAA6D114E, SAA6D114E-2A, SAA6D114E-2A-A, SAA6D114E-2A-KU, SAA6D114E-2AA, SAA6D114E-2AA-VH, SAA6D114E-2B, SAA6D114E-2B-A, SAA6D114E-2BA, SAA6D114E-2BB-VH, SAA6D114E-2CC-8M, SAA6D114E-2CC-8W, SAA6D114E-3A, SAA6D114E-3A-WT, SAA6D114E-3AA-W, SAA6D114E-3B, SAA6D114E-3B-A, SAA6D114E-3B-WT, SAA6D114E-3BB-W, SAA6D114E-3C, SAA6D114E-3C-WT, SAA6D114E-3D, SAA6D114E-3D-WT, SAA6D114E-3E, SAA6D114E-3LL, SAA6D114E-5C, SAA6D114E-6A, SAA6D114E-6B, WA100, WA100-3-H, WA100-3-HW, WA100-3A, WA100-3A-, WA100-5-, WA100-5-CN, WA100-5-SS, WA100-5-TK, WA100M, WA100M-3-CB, WA100M-3-CN, WA100SS-3-H, WA100SS-3A, WA100SSS-3-H, WA100SSS-3A, WA120, WA120-3L, WA120-3MC, WA120L, WA150, WA150-3-, WA150-5-A, WA150-5-CN, WA150-5-SS, WA150-5-TK, WA150L, WA150PZ, WA180, WA180L, WA180PT, WA200, WA200-3-, WA200-5-, WA200-5-SS, WA200-5L, WA200L, WA200PT, WA200PT-5L, WA200PTL, WA200PZ, WA250, WA250-3-, WA250-5L, WA250L, WA250PT, WA250PT-3MC, WA250PT-5L, WA250PTL, WA250PZ, WA270, WA270-5-, WA300-3CS, WA300L, WA320, WA320-3CS, WA320-5L, WA320-6 HIGHLIFT, WA320L, WA320PT-5L, WA320PZ, WA380, WA380-5-, WA380-5-TN, WA380-5L, WA400, WA400-5L, WA430, WA430-6E0, WA600, WA65, WA70, WA80, WA80-3-CB, WA80-3-CN, WA80-3-CO, WA80-3-SW, WA800, WA800-1, WA800-1-A, WA800-2LC, WA800-3E0, WA800-3LC, WA800L, WA90, WA900, WA900-1LC A20008-UP, WA900-3E0, WA900-3LC, WA900L, WB142, WB146, WB146PS, WB156-5 BACKHOE LOADER, WB156PS, WD900, WR11.

Equipment families: Backhoeloaders, Bulldozers, Dump Trucks, Engines, Excavators, Fork Lift, Mobile Cranes_Dressta, Mobile Crushers and Recyclers, Other, Rollers, Wheel Dozers, Wheel Loaders.

Fitment Notes

Always confirm final fitment before ordering. The same general part description can apply to different Komatsu models, serial ranges, component groups, or diagram positions. Verify the original part number, machine model, serial number, and installed arrangement before purchase.

Why Buy from WQC Parts?

• Aftermarket Komatsu replacement parts organized by part number and product type.
• Support for fitment review using machine model, serial number, and photos when needed.
• Competitive pricing for repair shops, equipment owners, and fleet maintenance teams.
• Reliable sourcing focused on reducing downtime and keeping machines working.

If you are unsure whether this part fits your machine, contact WQC Parts with your model, serial number, and existing part number before ordering.