Borg Warner to Velvet Drive Part Number Cross-Reference

By Chris, Hale Marine · 40+ years rebuilding Velvet Drive and ZF transmissions
Short answer: On a cast-iron Velvet Drive, the number starts with 10-17 (71C in-line), 10-18 (72C in-line), 10-04 (71C V-drive) or 10-05 (72C V-drive). Below are the part number matches we can back up. For anything else, send us the numbers off your part.

Old cast-iron Velvet Drives have been around a long time. Chris calls the 71C and 72C "Borg Warner Velvet Drive" transmissions, and he's had a 1017-004 and an early 5000 series unit on the bench that were built by Borg Warner. Velvet Drive's own Liberty brochure says Regal-Beloit bought the company from Borg Warner in 1995, and Velvet Drive's website says it became a division of Pleasurecraft Engine Group in April 2019.

The same part can also turn up under two numbers: a short one like 5C-A66A or 72-6, and a longer Velvet Drive number like 3000-166-001 or 1016-162-001. This page only lists matches we can back up from our own parts listings, from Chris's videos or from Velvet Drive's published literature. If your number isn't here, don't guess. Send it to us and we'll help you find the right part.

How to read the numbers on a cast-iron Velvet Drive

On the 71 and 72 series, the first four digits tell you what you've got. Chris says the number on a 71C should always read 10-17 something. Velvet Drive's spec sheet breaks it down like this:

Number starts withWhat it is
10-1771C in-line (direct drive or reduction)
10-1872C in-line (direct drive or reduction)
10-0471C V-drive
10-0572C V-drive

Per Velvet Drive, the "71" and "72" designations indicate input horsepower ranges. For the other series (CR-2, 5000, Liberty), see how to identify your transmission and its ratio.

The spec sheet writes the full assembly number with dashes after the 10, like 10-18-000-008. We list that same unit as 1018-000-008, and in the shop it usually gets shortened to 1018-008. Chris even titled one of his videos "1018-000-008 (1018-008)". Here are the 72C assemblies from Velvet Drive's sheet, written both ways, with links to our store listings where the listing matches the sheet:

Velvet Drive spec sheetSame number, our styleTypeRatio
10-18-000-0021018-000-002 ($10,500.00)In-line1:1
10-18-000-0041018-000-004 ($14,250.00)In-line1.52:1
10-18-000-1061018-000-106In-line1.88:1
10-18-000-0071018-000-007In-line2.10:1
10-18-000-0081018-000-008 ($15,375.00)In-line2.10:1
10-18-000-0101018-000-010 ($15,375.00)In-line2.57:1
10-18-000-0121018-000-012 ($15,375.00)In-line2.91:1
10-18-000-0141018-000-014 ($3,500.00)In-line1:1
10-05-000-0021005-000-002V-drive1.99:1
10-05-000-0031005-000-003V-drive1.99:1
10-05-000-0041005-000-004V-drive2.49:1
10-05-000-0051005-000-005V-drive2.49:1
10-05-000-0101005-000-010V-drive1.51:1
10-05-000-0111005-000-011V-drive1.51:1
10-05-000-0121005-000-012V-drive1.21:1
10-05-000-0131005-000-013V-drive1.21:1

Two numbers with the same ratio aren't the same transmission. On the V-drives, Velvet Drive's sheet says to specify output shaft rotation, same as or opposite to the engine, when ordering. And if your paperwork says 1.91:1, Chris calls the 1.88:1 its replacement ratio.

A few more things that help when you're reading a tag:

  • When Velvet Drive starts a new series, the serial numbers start at 1000.
  • Really old units can carry an AS-style model number instead, like AS7-71CR or AS7-72CR. Chris dates the bushing-style ones to the 1970s. Those old tags don't line up one-to-one with the 10-17 numbers in a way we're ready to publish, so send us what's on yours and we'll help you sort it out.
  • No tag on your V-drive? You can still get the ratio by counting gear teeth or shaft turns. Here's how.

Part number matches

These are parts where our own listing carries both numbers. Click the part to see it in the store.

71 and 72 series

Short numberVelvet Drive numberPart
5C-A66A3000-166-00171-72 forward clutch plate ($27.50)
72-61016-162-001Ring gear ($2,250.00)
B108A1000-130-016Bearing ($122.50)
B111AG1000-130-017Annular bearing ($303.75)

All four are also listed under V Drive Parts in our store.

5000 series

Old-style numberVelvet Drive numberPart
4806B2000-016-050Seal ring ($22.50)

That one's spelled out right on our listing: seal ring 2000-016-050 was 4806B.

Bearings with a second number

Several of the bearings under our 72 Series Parts show a second number next to the Velvet Drive number:

Velvet Drive numberAlso listed asPart
1000-133-00148964Bearing cup ($121.25)
1000-133-00248965Bearing cone ($283.75)
1000-133-00344409Bearing cone ($67.50)
1000-133-00452415Bearing cone ($116.25)
1000-133-04845546Bearing cone ($261.25)
1000-133-05045548Bearing cone ($303.75)
1000-133-05245550Bearing cone ($303.75)

5000 and Liberty series

The Liberty series is the 5000 family. Chris calls it the "5000 or Liberty series, whichever you want to call it," and he titled one video "3001-004 (2001-004)". They aren't identical, though. Chris says the main difference is the case: they beefed up the casting and changed the pump housing style, but it still uses the same pump. Our rebuilt exchange listings carry both numbers:

5000A numberLiberty numberOur rebuilt listing
2001-0033001-000-003REB2001-003 ($4,000.00)
2001-0043001-000-004REB2001-004 ($4,750.00)
2001-0063001-006REB2001-006 ($3,712.50)

More on these in our 5000 series guide.

Not on the list?

Most old numbers aren't on this page yet, because we only post a match when we can back it up. Write down every number you can read off the part and the tag, then call us at (804) 333-3677, Monday through Friday, 9 to 3 Eastern, or email sales@halemarine.com. We answer email within about 24 hours, seven days a week, and we'll help you find the right part.

Common questions

What does 10-17 mean on a Velvet Drive?

It's the start of the assembly number for a 71C in-line transmission. 10-18 is a 72C in-line, 10-04 is a 71C V-drive and 10-05 is a 72C V-drive, per Velvet Drive's spec sheet.

Is 1018-008 the same as 10-18-000-008?

Yes. Velvet Drive's spec sheet writes it 10-18-000-008, we list it as 1018-000-008, and in the shop it gets shortened to 1018-008.

Is a Liberty the same as a 5000?

Same family, not identical. Chris says the main difference is the case: a beefed-up casting and a different pump housing style, with the same pump.

My part number isn't listed. Can you still help?

Yes. Call (804) 333-3677, Monday through Friday, 9 to 3 Eastern, or email sales@halemarine.com with every number you can read off the part and the tag.