Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
For Komatsu Excavator PC78US-6 PC78MR-6 PC88MR-6 PW98MR-6 Boom Cylinder Seal Kit 707-98-36700For Komatsu Excavator PC78US 6 PC78MR 6 PC88MR 6 PW98MR 6 Boom Cylinder Seal Kit 707 98 36700 Model NO: Komatsu Excavator PC78US 6 Part NO.: 707 98 36700 ,7079836700 Application: Boom Cylinder: 707 00 0A631,707 00 0A630 Bore: 115mm Rod: 65mm Code: P U 14 See Details: PC78MR 6 S N 1001 UP (For EU) PC78MR 6 S N 1001 UP (For North America) PC78US 6 S N 4001 UP PC78US 6 S N 4001 UP (For North America) PC78US 6 S N 4001 UP (For Norway) PC78US 8 S N 15001
For Komatsu Excavator PC78US-6 PC78MR-6 PC88MR-6 PW98MR-6 Boom Cylinder Seal Kit 707-98-36700Model NO:Komatsu Excavator PC78US-6
Part NO.:707-98-36700
,7079836700
Application:
Boom
Cylinder:707-00-0A631,707-00-0A630
Bore:115mm
Rod:65mm
Code:P-U-14
See Details:
PC78MR-6 S/N 1001-UP (For EU)
PC78MR-6 S/N 1001-UP (For North America)
PC78US-6 S/N 4001-UP
PC78US-6 S/N 4001-UP (For North America)
PC78US-6 S/N 4001-UP (For Norway)
PC78US-8 S/N 15001-UP
PC78US-8 S/N 15001-UP (EU Spec.)
PC78US-8 S/N 15001-UP (North America Spec.)
PC88MR-6 S/N F00003 AND UP
PC88MR-8 S/N 5001-UP
PC88MR-8 S/N 5001-UP (EU Spec.)
PC88MR-8 S/N 5001-UP (North America Spec.)
PC88MR-8 S/N A90001-UP
PC88MR-8 S/N F80003 AND UP
PC88MR-8(JPN) - FOR EU 2-PIECE BOOM APPLICATION S/N 5001-Up
PW98MR-6 S/N F00003-Up
PW98MR-8 S/N F80003 AND UP
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 749 reviews
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Product Reviews
★★★★★ 5
Good product at a great price
Size: 16 AWG-100 ft
Used to wire my door speakers and it worked amazing
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Smaller than the original, but works well.
When I received it, it was so small that I thought it was a toy, or maybe for some 4cyl engine. It is significantly smaller than the original one. When I looked closer, the mount holes did line up, so I tried it. I did have to get shorter mount bolts.
To my surprise, it works great! I don't know what the longevity will be, but it made it through a busy august!
Considering the price and how small it is, I might just buy a second one to keep on board. Just in case.
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Reviewed in the United States on September 14, 2025
★★★★★ 1
Warning!!!
I was so impressed after install!! Fired right up faster that it ever has in the past, had the boat out about 8 times and CACK!!! They say they will stand behind the product and replace it, but do I risk another day ruined on the river?
Btw, I have a Volvo penta 5.0 21.5' Larson I/O
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Perfect fit and functioning. Excellent support
The starter fit perfectly, in my Mercruiser 4.3 from 2004, although it was awkward to replace on my engine due to space constraints. I had a few questions for the supplier and quickly received very descriptive answers. Now the starter works perfect in my boat. In all a very good choice which I really can recommend others.
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Reviewed in the United States on June 27, 2024
★★★★★ 5
New starter
Part came promptly and was a direct match to the original starter. I did a bench test prior to install and had no issues.
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Reviewed in the United States on July 16, 2025