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โก Ignite your ride with precision power!
The ACDelco Gold D1321AX Distributor Vacuum Control is a premium aftermarket ignition component designed for precise vacuum advance control. Manufactured in Mexico with a precision-machined exterior, it ensures perfect OEM fit and reliable performance to optimize your vehicleโs ignition timing. Lightweight and compact, this part is highly rated and trusted by professionals for dependable acceleration response.








| ASIN | B000IZ0XKY |
| Best Sellers Rank | #187,452 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Ignition Vacuum Advances |
| Brand | ACDelco |
| Customer Reviews | 4.6 4.6 out of 5 stars (88) |
| Date First Available | October 10, 2007 |
| Exterior | Machined |
| Item Weight | 4.8 ounces |
| Item model number | D1321AX |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 19138053 |
| Model | Control Asm,Distr Vac |
| OEM Part Number | 19138053 |
| Product Dimensions | 6.2 x 3.2 x 3.1 inches |
W**R
Worked great
Fit perfect on my small block chevy and preformed as it was supposed to
P**S
Real good quality, no second guessing on this line of replacement parts
Works really good , just what I wanted and needed , exactly the same part and seems to be of really good quality
J**Y
super fast shipping
original gm equipment and the fastest regular shipping i have ever seen , good job
J**.
Fit great and works well
This advance unit fit my MSD HEI and works like the original unit
D**C
Operational as described.
Over the years. I've never had a problem with ACD parts. So far, I've been successful in assuming that the new parts will indeed work as described. Despite this, I vacuum tested I anyway. My old one lasted two decades--most bang for the buck. 'Nuff said. -dc
R**E
Genuine Delco parts are my favorites
I replaced a dead vacuum pot on my HEI distributor. The part fit perfectly of course and was fairly easy to install as I had the distributor out. There are some small screws that would be easy to drop and that happens everytime if I try this with it installed.
K**R
Worked on my 1978 Chevy C20
Worked well to replace the Standard Motor Products version that only lasted 6 mos and left me with a big vacuum leak.
J**N
Good quality parts
Quality part.
Trustpilot
1 month ago
2 weeks ago