Ford battery heat shields are identified by basic part number 10A682. Though primarily used on cars equipped with air conditioning to protect the battery from engine heat, shields were used on Mustangs equipped with a 428 CJ or SCJ engine even if the car wasn't equipped with a/c.
| Application | Engineering Number | Service Part Number |
|---|---|---|
| 1968, 1969 | C7OB-10A682-B | C7OZ-10A682-A (replaced by C7OZ-10A682-B) |
| 1970 | D0OB-10A682-A | D0OZ-10A682-A |
Other applications: the C7OB shield was also used on 1968 and 1969 Fairlanes and Torinos (351 and 390 with air conditioning or 428) and 1968 and 1969 non-428 Mustangs (351 and 390 with air conditioning). The D0OB shield was also used on 1970 and 1971 Torinos and Fairlanes, and Falcons assembled after January 1970. Lincoln-Mercury applications for the C7OB shield include 1968 and 1969 Comet, Montego, and Cougar (390 with air conditioning). The 1975 edition of the Lincoln-Mercury Master Parts Catalog doesn't include the 428 engine in 1968 or 1969, but I suspect that's an error of omission. The D0OB shield was also used on 1970 and 1971 Comet, Montego, and Cougar (351, 428, and 429 with air conditioning) and 1972 Cougar with air conditioning.
The C7OB shield appears commonly in both gray and black plastic, but the D0OB shield seems to have been only available in black. Some obvious differences in the two shields can be seen when looking at the top of the long side: there's a "step" on the trailing edge of the C7OB shield that doesn't exist on the D0OB shield. An indentation that runs along the entire top edge of the D0OB shield stops at the step on the C7OB shield. The C7OB shield is approximately 1.5" longer on the long side.
Part numbers can be found on the inside face of the long edge of the shield; the areas are circled in red in the pictures below. There is a "FoMoCo" logo next to each part number on the C7OB shield. There are no Ford logos on the D0OB shield.
C7OB-B Battery Shield
Picture courtesy of Peter Manson.
C7OB-B Battery Shield Part Number and Logo
Picture courtesy of Peter Manson.
C7ZB-B Battery Shield Part Number and Logo
Picture courtesy of John Spencer.
Three different part numbers can be seen on an original C7OB shield: the C7OB10A682B engineering number, an older C7OB10A682A engineering number that's obliterated with Xs (and likely corresponds to the original C7OZ-10A682-A service part number), and C7ZB10A682B. The C7ZB10A682B number is a bit of a mystery because it doesn't appear in any of our references.
Obliterated C7OB-A Battery Shield Part Number and Logo
Picture courtesy of Peter Manson.
C7OB-B Battery Shield Part Numbers and Logos
Picture courtesy of Peter Manson.
D0OB-A Battery Shield
D0OB-A Battery Shield Engineering Number
The same basic shield was used to protect both large group 27 batteries and smaller batteries. When used with a smaller battery the long edge of the shield is trimmed to fit the smaller battery tray.
Trimmed C7OB Battery Shield
Picture courtesy of John Spencer.
A reproduction of the C7OB-B shield is available in black. The D0OB-A shield is not currently reproduced.
Reproduction C7OB Battery Shield
Picture courtesy of Bill Upham of
Mansfield Restoration Parts.
Reproduction C7OB Battery Shield Part Number Detail
Note that there are no Ford logos on the reproduction shield and the part numbers are molded differently than the original. The shield is marked C7OB10A682B and C7ZB10A682B, but it's not marked with the obliterated C7OB10A682A engineering number.
© 2010 Scott A. Hollenbeck. All Rights Reserved.
