310-7612 engine camshaft for engine spare part

310-7612 engine camshaft for engine spare part Featured Image
  • 310-7612 engine camshaft for engine spare part

Short Description:

CAT 310-7612 engine camshaft fits heavy-duty C15 / C18 electronic engine, governing intake and exhaust valve timing. It serves heavy haul trucks, large wheel loaders and pipelayers for mining overhaul.


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It is forged from alloy steel with deep induction hardened cam lobes, balancing shaft toughness and surface wear resistance. For C15 and C18 engines, this camshaft actuates valve train and works with the HEUI fuel system to optimize gas exchange across the full RPM range, which defines power delivery and combustion performance under heavy climbing loads. It matches 374F excavator, 986H/988H wheel loader, 735/740 articulated hauler, PL83/PL87 pipelayer and D8R/D8T dozer, well suited for continuous full-load mining operations in dusty Middle East and Africa sites.

Part No.: 310-7612
Name: Engine Camshaft
Application: CAT C15, C18 engine; 374F excavator, 986H/986K/988H loader, 735/740/770G haul truck, PL83/PL87 pipelayer, D8R/D8T dozer, 24M motor grader
Material: Steel
Total Length (in): 42.02
Weight (lb): 71.12
Diameter (in): 3.34
Structure: Inline single camshaft

Used to control valve timing and lift, thereby enabling efficient combustion. Widely used in Cat 2306, 2506, 2506A, 2506D, 2506F, 2806, 2806-18, 2806A, 2806C, 2806D, 3406E, 3456, 3512, 3512C, 3516C, C-12, C-15, C-16, C-18, C13, C15, C18, and C9 engines (pistons); 24H and 24M motor graders; 2506, 3406E, 3456, 3508, 3512C, C13, C15, C18, C9, D450, D500, D550, D600, DE550S, DE600S, DE605, DE660, DE715, PMC15, PRO500, XQE500, and XQP500 generator sets; 320, 365, 365C, 374D, 375, 385C, 390D, 621G, 631G, 657G, 735C, 740, 770, 772, 980H, and C18 OEM products; 365C, 365D, 374, 374D, 374E, 374F, 385C, 385D, 390D, 5200, 6015, 6018, 6060, and 6060X excavators; 365C, 385C, and MH3275 material handlers; and the C13 engine common platform. (C13), C13, C18, TH55, and TR43 powertrains; C15 and C18 power systems; C15 engine (common platform); C15 generator set (rental); C15 petroleum generator set package (OEM); C18 engine (common platform); C18 Goer; C18 petroleum generator set package (OEM); D8, D8R, D8T, D9T, MT855, MT865, MTC855, and MTC865 track-type tractors; MD6290 drill; P550-6 generator set (Perkins 2506 EU3a); PM-150, PM-200, PM-201, PM6, PM620, PM622, PM8, PM820, PM822, PM825, RM-500, RM500, RM500B, RM600, and RM800 paving equipment; PR43C locomotive; PRO500 generator set (FG Wilson).

Maintenance & Replacement Tips

Take photos of timing marks on crank and cam gear before disassembly. C15/C18 have tight valve lash tolerance, misalignment causes valve-to-piston collision. Inspect lifters, cam bearings, thrust washers and oil seals, replace scored parts. Lubricate lobes and journals fully with specified engine oil before fitting. Rotate crankshaft manually multiple times to confirm no valve interference. Run idle break-in first, then apply load gradually, monitor exhaust temperature, oil pressure and gear housing noise.

FAQ 

Q: Does 310-7612 fit both C15 and C18?
A: It is interchangeable for matched C15 and C18 ratings. Always verify engine serial number before ordering.

Q: How many 310-7612 camshafts does one C18 engine need?
A: C15 and C18 are inline engines, only one camshaft is installed per engine.

Q: Can worn journals be reused with new bearings?
A: It depends on wear measurement. If journals are out of tolerance, new bearings will not maintain proper oil clearance and bearing failure will follow quickly.

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