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Mercruiser Alpha One Upper Box Gearcase Seal Kit | Glm Part Number: 87500; Sierra Part Number: 18-2648; Mercury Part Number: 26-
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Vendor: Great Lakes Memories
Type: Drive Train
Sku: WBCARB004AQZBFO
Available: Available
Sold by Carkart, an authorized reseller.
Returns accepted within 30 days | support@carkart.com
Shipping Information
- Free Standard Shipping — United States only
- Processing Time: 1–3 business days
- Estimated Delivery: 3–5 business days after dispatch
- Double-boxed, fully insured & discreetly packaged
- Tracking number sent via email once dispatched
- Orders over $250 require signature upon delivery. Taxes calculated at checkout.
Returns & Refund
Returns accepted within 30 days of delivery.
Damaged or Defective Item
Free return shipping + replacement or full refund
Wrong Item Received
Free return shipping + replacement or full refund
Change of Mind
Return shipping at customer's expense · 25% restocking fee applies
All returns require a Return Authorization (RA) number before sending.
View Full Return & Refund Policy
⚠️ California Proposition 65 Warning :
Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
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Mercruiser Alpha One Upper Box Gearcase Seal Kit | Glm Part Number: 87500; Sierra Part Number: 18-2648; Mercury Part Number: 26-
$45.32
FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
- Q: What are the dimensions of the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT? A: The package dimensions are approximately twenty-one point three three six centimeters long, seven point one one one centimeters wide, and three point five five five centimeters high.
- Q: What is the weight of the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT? A: The package weighs zero point three pounds, making it lightweight and easy to handle.
- Q: What part numbers are associated with this gearcase seal kit? A: The GLM part number is eight thousand seven hundred fifty, Sierra part number is eighteen dash two six four eight, and Mercury part number is twenty-six dash three two five eleven A one.
- Q: How do I install the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT? A: To install, ensure the gearcase is clean and dry, then replace the old seals carefully with the new ones from this kit.
- Q: Is the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT suitable for my boat? A: Yes, this kit is designed for use with Mercruiser #1 and Alpha One models up to nineteen ninety-seven, ensuring a proper fit.
- Q: Can I use this kit for models after nineteen ninety-seven? A: No, this seal kit is specifically for Mercruiser models up to nineteen ninety-seven and may not fit newer models.
- Q: How should I store the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT? A: Store the seal kit in a cool, dry place away from direct sunlight to maintain its integrity and performance.
- Q: What if the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT arrives damaged? A: If the kit arrives damaged, contact customer support for assistance with returns or replacements.
- Q: What materials are used in the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT? A: The kit is made from high-quality automotive materials designed to withstand marine environments and ensure durability.
- Q: Can I use this seal kit for other marine brands? A: No, this seal kit is specifically designed for Mercruiser applications and may not be compatible with other brands.
- Q: How do I clean the gearcase before installing the seal kit? A: Clean the gearcase thoroughly with a suitable degreaser to remove any old grease or debris before installation.
- Q: What is the warranty on the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT? A: The warranty details may vary by retailer, so it's best to check with the seller for specific warranty information.
- Q: Is there a specific tool required for installation of this seal kit? A: Yes, basic automotive tools such as a socket set and screwdrivers are typically required for the installation.
- Q: Can I return the MERCRUISER ALPHA ONE UPPER BOX GEARCASE SEAL KIT if it doesn't fit? A: Yes, you can usually return the kit if it does not fit, provided it is in its original packaging and condition.
- Q: What should I do if I lose a part from the seal kit? A: If you lose a part, contact customer service for assistance in obtaining a replacement or a new kit.