What color is the fluid?

The primary case fluid is amber colored. You may be thinking about the Heavy Shockproof Transmission fluid which is pink.

Can this be used in a can am outlander atv?

this is for a wet clutch where the transmission and primary do not share the same fluid

Any compatibility issues removing amsoil from primary and replacing with red line?

Don't know I was running HD primary oil but I don't think there would be any issues it doesn't circulate through the engine or tranny.

What computer part on my Harley-Davidson can I put on and hook up to the computer to get in more rapid response from my throttle

You need a tuner from Harley, or another maker,TTS3 , etc. and program to be able to talk to your CPU . The connection is under my seat,it differs with year and model bike.

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Red Line (42904) V-Twin Primary Case Oil - Engine Oil (1 Quart Bottle)

Product ID: 58725086

Details

Brand
Red Line
Flash point
232 Degrees
Liquid volume
32 Fluid
Package information
Bottle
Vehicle service type
Motorcycle

🔥Operates across wide temperature range (Flash Point 232°C)

⚙️Friction-balanced for clutch performance

🏍️Specifically for 1984+ V-Twin engines

$142.36

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Description

🏍️ Power your V-Twin with clutch-perfect precision – don’t let your ride settle for less!

RACE PROVEN PERFORMANCE - Developed by Red Line, a leader since 1979 in high-performance lubricants trusted by racing enthusiasts worldwide.
COMPREHENSIVE PROTECTION - Reduces wear and temperature in primary chaincases, extending engine life and boosting reliability on every ride.
FRICTION BALANCED FORMULA - Delivers less slip and smoother clutch engagement for enhanced power transfer in modified and stock engines.
UNMATCHED THERMAL STABILITY - Withstands extreme heat up to 232°C, ensuring consistent clutch and chaincase protection under pressure.
PRECISION ENGINEERED FOR V TWINS - Tailored synthetic oil optimized for 1984-to-present American V-Twin motorcycles and aftermarket engines.

Red Line (42904) V-Twin Primary Case Oil is a full-synthetic, friction-balanced lubricant designed specifically for 1984 and newer American V-Twin motorcycle engines. Engineered to improve clutch operation and reduce wear, it operates reliably across a wide temperature range with a high flash point of 232°C. Trusted by racers since 1979, this 1-quart bottle delivers race-grade protection and performance for your primary chaincase and wet-diaphragm spring clutch systems.

Specifications

ASIN	B0053O9EUA
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	74,862 in Automotive ( See Top 100 in Automotive ) 681 in Car Engine Oils
Brand Name	Red Line
Compatible with Vehicle Type	Motorcycle
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (2,507)
Flash Point	232 Degrees Celsius
Global Trade Identification Number	00083522429047
Included Components	Red Line (42904) V-Twin Primary Case Oil - Engine Oil (1 Quart Bottle)
Item Type Name	Motor Oils
Item Weight	771 g
Liquid Volume	32 Fluid Ounces
Manufacturer	Red Line
Manufacturer Part Number	42904
Model Number	42904
Number of Packs	1
Part Interchange Info	42904
Size	1 Quart
UPC	083522429047
Unit Count	946.3529 millilitre

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$142.36

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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