CAT 3126B Parts Manual

About CAT 3126B Parts Manual

CAT 3126B is one of Caterpillar's most popular excavators. This parts manual covers 894 part numbers across 14 systems — engine, hydraulic, cooling, electrical, undercarriage and more. Each part lists its number, name and quantity per assembly, directly from official CAT parts book data.

Need a price for any 3126B part? Send the part number and our team returns genuine / reman / OEM options within 24 hours.

Popular Parts

• 2A-4429 — LOCK-RETAINER
• 1W-2715 — LOCK-RETAINER
• 3V-2431 — WASHER (10.2X16X2-MM THK)
• 8T-2561 — WASHER-HARD (10.5X28.5X5-MM THK)
• 8M-5860 — PLUG-CUP
• 8T-3282 — WASHER-HARD (22X35X3.5-MM THK)
• 6V-2315 — BOLT (L=35mm)
• 6V-7728 — BOLT (L=45mm)