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OE Quality
60-Day Returns
DormanPart #: 42045
Dorman 42045 Brake Master Cylinder Reservoir Cap
40 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$28.68Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford and Mercury, Aerostar, Escort, LN7, Lynx, Tempo, and Topaz
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Brake Master Cylinder Reservoir Cap options
Dorman 42045 Brake Master Cylinder Reservoir Cap
| Brand | Dorman |
|---|---|
| Part Number | 42045 |
| Material | Plastic |
| Shape | Round |
| Gasket Or Seal Included | No |
| Package Contents | 1 master cylinder cap |
| Seal Included | Not required |
This part fits 40 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1994 | Ford | Tempo | N/A | w/2 Slots |
| 1994 | Mercury | Topaz | N/A | w/2 Slots |
| 1993 | Ford | Tempo | N/A | w/2 Slots |
| 1993 | Mercury | Topaz | N/A | w/2 Slots |
| 1992 | Ford | Tempo | N/A | w/2 Slots |
| 1992 | Mercury | Topaz | N/A | w/2 Slots |
| 1991 | Ford | Tempo | N/A | w/2 Slots |
| 1991 | Mercury | Topaz | N/A | w/2 Slots |
| 1990 | Ford | Tempo | N/A | w/2 Slots |
| 1990 | Mercury | Topaz | N/A | w/2 Slots |
| 1989 | Ford | Aerostar | N/A | |
| 1988 | Ford | Aerostar | N/A | |
| 1988 | Ford | Escort | N/A | |
| 1988 | Ford | Tempo | N/A | |
| 1988 | Mercury | Topaz | N/A | |
| 1987 | Ford | Aerostar | N/A | |
| 1987 | Ford | Escort | N/A | |
| 1987 | Ford | Tempo | N/A | |
| 1987 | Mercury | Lynx | N/A | w/PB |
| 1987 | Mercury | Topaz | N/A | |
| 1986 | Ford | Aerostar | N/A | |
| 1986 | Ford | Escort | N/A | |
| 1986 | Ford | Tempo | N/A | |
| 1986 | Mercury | Lynx | N/A | w/PB |
| 1986 | Mercury | Topaz | N/A | |
| 1985 | Ford | Escort | N/A | |
| 1985 | Ford | Tempo | N/A | |
| 1985 | Mercury | Lynx | N/A | |
| 1985 | Mercury | Topaz | N/A | |
| 1984 | Ford | Escort | N/A | |
| 1984 | Ford | Tempo | N/A | |
| 1984 | Mercury | Lynx | N/A | |
| 1984 | Mercury | Topaz | N/A | |
| 1983 | Ford | Escort | N/A | |
| 1983 | Mercury | LN7 | N/A | From 2/83 |
| 1983 | Mercury | Lynx | N/A | |
| 1982 | Ford | Escort | N/A | w/PB |
| 1982 | Mercury | Lynx | N/A | w/PB |
| 1981 | Ford | Escort | N/A | w/PB |
| 1981 | Mercury | Lynx | N/A | w/PB |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
420454E3FZ-2162E3FZ2162A
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.