OEM-specification Komatsu Filter Element-Air. CTP aftermarket replacement. Part number 1651689. Compatible with 225D, 235, 235C, 3304, 3306, 3306B, 613C, 613C II, 621, 623, 627, 627B, 637D, 641, 641B, 650B, 651, 657, 657B, 666, 768B, 769, 772, 773, 824B, 966C, 977K, 977L, 988, 992, D250D.
Always verify with serial number before ordering.
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Never run an engine without a filter — even briefly causes abrasive damage. Pre-fill fuel filters with clean fuel before fitting to reduce prime time. Replace O-rings on filter housings every second service. Record change dates on filter housing.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.