7C-0670 Caterpillar right rear engine camshaft for engine spare part

7C-0670 Caterpillar right rear engine camshaft for engine spare part Featured Image
  • 7C-0670 Caterpillar right rear engine camshaft for engine spare part
  • 7C-0670 Caterpillar right rear engine camshaft for engine spare part

Short Description:

7C-0670 Caterpillar right rear engine camshaft, designed for heavy-duty V-type 3512 engine, controls valve timing for the right rear cylinder bank, widely applied on marine power, oilfield units and large generator sets.


Product Detail

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description

The 7C-0670 is an independent rear camshaft on the right bank for V-type 3512 engine, matched with the left rear camshaft. It drives roller lifters of this bank to regulate intake and exhaust valve events. The large-displacement 3512 runs under sustained high cylinder pressure for marine and oilfield fracturing service. Lobe pitting, spalling or journal scoring causes uneven cylinder performance, unbalanced exhaust temperature and power loss. Severe damage leads to valve-piston contact. Its timing profile is dedicated to the right rear bank and cannot be relocated to other banks.

Part No.：7C-0670
Name：Right Rear Engine Camshaft
Fit Models：CAT 3512
Equipment：Marine propulsion engine, oilfield power unit, SR4 large generator set
Material：Forged alloy steel with induction hardened cam lobes
Matching Components：Roller lifters, cam bearings, timing gear, thrust washer

Product Advantages

1. OEM dedicated timing profile for the right rear bank of 3512, delivering balanced air exchange and consistent combustion
2. One-piece forged blank with dense grain structure, resistant to cyclic impact for non-stop marine and oilfield service
3. Uniform hardened layer on lobes and journals provides reliable abrasion resistance against contaminated lubricating oil
4. Drop-in replacement dimension, compatible with original bearings, gear and thrust parts of the same bank

FAQ 

1. Can 7C-0670 be installed on the left rear bank?
No. Right rear and left rear camshafts have different timing and lift profiles, mixing them breaks engine timing.

2. Does it fit 3516 engine?
No. 3512 and 3516 differ in cylinder layout, cam mounting distance and timing parameters, non-interchangeable.

3. Can the camshaft stay in service with scattered shallow pitting and no crack?
Light isolated pits can be monitored temporarily. Replace it if pitting spreads or spalling occurs to protect roller lifters.

4. What risk if I install new camshaft and reuse old lifters?
Mismatched contact surfaces will trigger rapid lobe pitting and spalling during break-in and lead to premature failure.

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