# S&S Cycle 53-80 BT Oil Passage Drill Jig

The S&S crankcase oil passage drilling jig is used to perform crankcase drilling modifications when installing an S&S oil pump assembly on early big twin crankcases. Made of hardened steel for durability, this fixture enables the builder to do four modifications.

-   Primary chain oil supply passage from the breather valve gear cavity to the back side of the oil pump body on late generator and early alternator crankcases
-   Pressure relief passage from behind the main oil pressure valve to the gear cavity on alternator crankcases
-   Crankshaft and main bearings supply passage on early alternator crankcases
-   Crankshaft and main bearings supply passage on generator crankcases

This Part Fits:

Year

Make

Model

Submodel

1986-1990

Harley-Davidson

FLST Heritage Softail

Base

1988-1991

Harley-Davidson

FLSTC Heritage Softail Classic

Base

1990-1991

Harley-Davidson

FLSTF Fat Boy

Base

1987-1991

Harley-Davidson

FXLR Low Rider Custom

Base

1982-1991

Harley-Davidson

FXRS Low Glide

Base

1983-1991

Harley-Davidson

FXRT Sport Glide

Base

1977-1982

Harley-Davidson

FXS Low Rider

Base

1983-1985

Harley-Davidson

FXSB Low Rider - Belt

Base

1984-1991

Harley-Davidson

FXST Softail Standard

Base

1988-1991

Harley-Davidson

FXSTS Springer Softail

Base

1980-1986

Harley-Davidson

FXWG Wide Glide

Base

## Details

- **Price:** 123.24 CAD
- **Vendor:** S&S Cycle
- **Type:** Hardware - Singles

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 123.24 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-53-80-bt-oil-passage-drill-jig)
> Updated: 2026-07-13