Crankshaft Cage & Needle Bearing Kit – Fits Mercury Marine 35-150 HP Outboards (Replaces 31-62596A1)

402 (40 HP)

3336258–4117709, 3339688–9076838, 3340783–7047607, 4117710–4860102, 7047608–7112422, 8002335–8027439, 8027440–8052124, 9076839–9184450

402, 40 (2 CYL.)

4860103–5556229, 5556230 & Up, 7112423–7144762, 7144763 & Up, 8052125–8064749, 8064750 & Up, 9184451–9251455, 9251456 & Up

50 (3 CYL.)

0A721308 & Up, 0B122930–0D000749, 6428681–0B122929, 7208333–0A721307, 9385911–9469199, 9469200–9683054

60 (3 CYL.)

0A721308 & Up, 0B122930–0D000749, 6428681–0B122929, 7208333–0A721307, 9385911–9469199, 9469200–9683054

650 (3 CYL.)

3547987–4382056, 4382057–4571651, 7013633–7073472, 7073473–7087822, 8006640–8042349, 9020074–9112988, 9112989–9135824

70

5361993–5702219, 5702220–6428680, 7177688–7208332

70 (3 CYL.)

4571652–5579016, 7087823–7145937, 8042350–8065064, 9135825–9255130, 5579017–6428680, 7145938–7208332, 8065065 & Up, 9255131–9385910

75 (4 CYL.)

6432901 & Up, 7208573 & Up, 9393856 & Up

80

4842729–5763340, 5763341–6432900, 7162528–7208572, 8066915 AND UP

800/80 (4 CYL.)

4831999–5582561, 7110998–7146212, 8050200–8067014, 9177626–9256130, 5582562–6432900, 7146213–7208572, 8067015 & Up, 9256131–9393855

850 (4 CYL.)

3493913–4366801, 7010108–7071372, 8005440–8043774, 9011604–9110013, 4366802–4831998, 7071373–7110997, 8043775–8050199, 9110014–9177625

90 (6 CYL.)

5309951–5721324, 6436123 & Up, 7208848 & Up, 5721325–6436122, 7190903–7208847, 5299506–5594656, 5594657–6436122, 7147088–7208847, 8060545–8060694, 8071020 AND UP

900, 90

4845301–5299505, 7111698–7123762

115 (6 CYL.)

4865178–5430526, 5430527–5738890, 8057045–8062459, 8062460–8062634, 6436123 & Up, 7208848 & Up, 5738891–6436122, 7191308–7208847, 5314656–5600966, 5600967–6436122, 7131213–7147987, 7147988–7208847, 8061120–8061269, 8067340 AND UP

1150, 115

3525441–4855152, 7010763–7112248, 8008665–8051949, 4855153–5314655, 7112248–7131212, 8051950–8061119

140

5088444–5443029, 5443030 AND UP, 8055605–8062459, 5327663–5625107, 5625108 AND UP, 7132513–7150412, 7150413 AND UP, 8066065 AND UP

1400, 140

3293234–3502805, 4865678–5327662, 7112773–7132512, 8052650–8052879

1500

3502806–4865677, 7010533–7112772, 8005615–8052649

Common signs of a worn crankshaft bearing include a deep knocking or rumbling sound from the engine block, excessive vibration during operation, or the presence of fine metallic shavings in the engine oil.

Yes, this kit is designed to fit a wide variety of both 2-stroke and 4-stroke Mercury outboards as specified in the compatibility tables. Always verify your specific model and serial number before ordering.

This is an advanced repair. Professional installation requires specialized engine service tools, including a bearing press, bearing pullers, and calibrated torque wrenches. Always consult your engine's official service manual for a complete tool list and procedures.

This kit contains one bearing assembly. Depending on your engine's design, different bearings may be used for upper, center, or lower positions. Consult your service manual to confirm the exact OEM part number required for the specific location you are replacing.

This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. The component is manufactured in an ISO 9002 facility and is batch-inspected for quality and consistency.

We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout if they are available for your location.

This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused parts in their original condition. See our policy page or reach out for instructions.