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🏍️ Ride Smooth, Ride Confident – The Ultimate Harley Chaincase Oil
Spectro R.HDPCO Heavy Duty Primary Chaincase Oil is a premium SAE 85 viscosity oil formulated with advanced polymers to deliver superior clutch engagement and temperature stability. Designed specifically for Harley Sportster and Big Twin motorcycles, it eliminates clutch drag and slipping while exceeding all OEM and Harley-Davidson warranty requirements, ensuring reliable, high-performance protection under heavy loads.
| ASIN | B0765J3G88 |
| Best Sellers Rank | #94,999 in Automotive ( See Top 100 in Automotive ) #31 in Powersports Chain Oil #5,330 in Powersports Parts |
| Brand | Spectro Oil |
| Brand Name | Spectro Oil |
| Container Type | Can |
| Customer Reviews | 4.8 out of 5 stars 357 Reviews |
| Global Trade Identification Number | 00831556000127 |
| Included Components | Heavy Duty Primary Chaincase Oil |
| Item Form | Oil |
| Item Type Name | Heavy Duty Primary Chaincase Oil |
| Item Weight | 2 pounds |
| Liquid Volume | 32 fluid ounces |
| Manufacturer | Spectro |
| Model Number | R.HDPCO |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Information | Can |
| Part Number | R.HDPCO |
| Recommended Uses For Product | Automotive |
| SAE J300 Viscosity Grade | 8 |
| UPC | 831556000127 |
| Unit Count | 32 Fluid Ounces |
| Viscosity | SAE 85 |
| Warranty Description | See manufacturer Site |
S**1
Worked good
Good oil
J**A
Great primary oil
Love this primary oil. Shifts smoother. I also use their 6 speed transmission oil when I do my 3 hole oil change. Worth the $$
P**E
Great product
It’s the best. Change every 10,000 miles.
A**R
Great product
Husband says it's the best. Lol
B**R
Awesome
Love this product
M**M
2009 Super Glide
It didn’t make anything worse. Or better. But it worked. I’ve been a Amsoil guy for years Amsoil primary fluid, Amsoil v-twin gearbox oil, and Amsoil v-twin 20-50. Hard to beat
E**8
Best Harley Primary Case Oil
Absolutely the best primary case ok for your Harley!!!!!
J**Y
The only thing I trust in my Big Dog!
I have strayed a time or two but I always come back to this. The shifting is always so much smoother when I have this in the primary. Worth it.
Trustpilot
2 weeks ago
3 weeks ago