✓ VERIFIED
Apr 6, 2022
Bel Ray is awesome
Great stuff !!! I run this in both my Harleys and have better cooling and better shifts then with any other fluid
BEL-RAY
SKU: 840-1579
Bel-Ray V-Twin Chaincase Lube 6 Gallon BIB - Harley Touring & Softail
$281.95
Free shipping on orders $99+ · Best value guarantee
affirm
From $23.49/mo with Affirm.
See if you prequalify
IN STOCK
— Ships within 24 hours
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returns — see policy
Authorized Dealer — sourced direct
About Bel-Ray
Bel-Ray has manufactured motorcycle lubricants since 1948, with V-twin specific engine, primary and transmission oils formulated for air-cooled operating temperatures.
Bel-Ray Primary Chaincase Lubricant is a specialized oil formulated specifically for V-twin motorcycle primary cases and wet clutches. This 6-gallon bulk container delivers robust wear protection, prevents clutch slip and chatter, and features a distinctive red color for easy leak spotting.
Why riders pick this
- Engineered for V-twin primary chaincases and wet clutches
- Anti-wear additives extend primary chain life
- Prevents clutch slip and chatter for confident shifts
- Red color for quick and easy leak identification
- Bulk 6-gallon bag-in-box for workshops and frequent use
This Bel-Ray V-Twin Chaincase Lubricant is engineered for the demands of high-performance V-twin engines. It provides superior lubrication and protection to the primary chain and clutch components, ensuring smooth operation and extended component life. The unique red color makes it easy to identify any leaks, giving you peace of mind on the road.
Optimized for V-Twin Performance
- Specifically formulated for primary chaincases and wet clutches
- Extends primary chain life with advanced anti-wear additives
- Prevents clutch slipping and chatter for consistent power delivery
- Distinctive red color aids in quick leak detection
Bulk Convenience for the Dedicated Rider
The 6-gallon bag-in-box (BIB) format is ideal for shops and riders who perform frequent maintenance or own multiple V-twin motorcycles. This bulk packaging ensures you always have the right lubricant on hand, whether you're working on an air-cooled or liquid-cooled Big Twin engine. Ensure your Harley-Davidson primary drive is protected with Bel-Ray's proven formula.
Specifications
- Brand: Bel-Ray
- Manufacturer Part #: 301830150033
- UPC: 690509408539
- Container Size: 6 gallons
- Container Type: Bag-in-box (BIB)
- Weight: 45 lbs
- Dimensions: 18 in L × 7 in W × 13 in H
Common questions
Is this primary chaincase lubricant suitable for both air-cooled and liquid-cooled Big Twins?
Yes, Bel-Ray primary chaincase lube is formulated to work effectively in both air-cooled and liquid-cooled Big Twin primary cases, providing consistent protection across various engine designs.
Will this lubricant affect my wet clutch performance?
No, this lubricant is specifically formulated for wet clutches to prevent slipping and chatter, ensuring smooth engagement and reliable power transfer.
What is the benefit of the red color in this lubricant?
The distinctive red color of the Bel-Ray primary chaincase lubricant makes it easier to spot any leaks, allowing for quicker diagnosis and repair to prevent further issues.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Bel-Ray |
| TYPE | Chemicals |
| SKU | 840-1579 |
| WEIGHT | 45.0 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.83
59 RATINGS
5★
54
4★
2
3★
2
2★
0
1★
1
✓ VERIFIED
Jun 16, 2025
EVERYTHING is Better With Bel-Ray!
I been changing my own Harley Fluids almost 30 years! I changed my Harley bikes to Bel-Ray a few years back, I'm now Bel-Ray in my Trans, Primary and engine oil from my Classic EVO to my modern M8 . <br />The Bel-Ray products improved everything from offering the lowest top end valve noise using the Motor Oil to less 1st gear clunk and smooth like BUTTER shifting to NOW SUPER EASY finding Neutral. Everything is better with Bel-Ray my now #1 Fluids of choice from my Classic to modern Harley!
✓ VERIFIED
Apr 7, 2026
Quality Harley fluids
Works great in my '95 Heritage Softail. Great feel and runs a quiet primary. Excellent stuff.
✓ VERIFIED
Nov 5, 2025
All i use
Been using it for years
✓ VERIFIED
Oct 3, 2025
Excellent fluids
I love these Belray fluids for the primary specific oil and the transmission specific oil engine oil run whatever you want but for the primary and transmission fluid made by Belray I feel it is very good fluid as the bike shifts smoother doesn't clunk near as hard when you drop it in first gear. I've been running this stuff for years and years and I've never had any primary or transmission issues
✓ VERIFIED
Oct 3, 2025
Instantly had an easier time finding neutral along with the shifts feeling incredibly smooth
