Cadillac 1940s Spark Plugs (2024-2026) - Parts, Prices & Buying Guide
Find quality spark plugs for your Cadillac 1940s (2024-2026). Browse 20 available listings with prices starting around $108.74. Reduced emissions.
Found 54 listings for "cadillac 1940s spark plugs"

3x NOS Goodyear 14 spark plugs 1940s 10mm Packard Cadillac

Lot of 4 Champion Y-6 Spark Plugs 1930s 1940s Packard Chevrolet Buick Cadillac

5 x Volvo NGK Iridium IX Spark Plugs 2.5L / T5 R C30 C70 S40 S60 Repl: 30650379


( 1 ) .. ‘NOS’ AC-84 Spark Plug .. 18mm Threads .. Circa 1940’s .. Made in USA

6 Spark Plugs 1937-1950 Oldsmobile Six 215 230 238 , 37 38 39 40 41 42 46 47 50

6 * Genuine IRIDIUM SPARK PLUGS IKH20TT For Volvo C30,C70,S40,S60,S80

6 * Genuine IRIDIUM SPARK PLUGS IKH20TT For Volvo C30,C70,S40,S60,S80

Champion 844 H10C SE Spark Plugs, 1939-53 Fits Ford Flathead, Set of 8

6 Spark Plugs 1938 1939 1940 Chevrolet 38 39 40 CHEVY 216 ci 6-cylinder

6 * Genuine IRIDIUM SPARK PLUGS IKH20TT For Volvo C30,C70,S40,S60,S80


6 * Genuine IRIDIUM SPARK PLUGS IKH20TT For Volvo C30,C70,S40,S60,S80

For Volvo C30 C70 S40 S60 V50 V70 XC70 Spark Plug Set Original 30751806



Genuine OEM ACDelco GM Spark Plugs 19382850 R45XLS

6 * Genuine IRIDIUM SPARK PLUGS IKH20TT For Volvo C30,C70,S40,S60,S80

6 * Genuine IRIDIUM SPARK PLUGS IKH20TT For Volvo C30,C70,S40,S60,S80

6 * Genuine IRIDIUM SPARK PLUGS IKH20TT For Volvo C30,C70,S40,S60,S80
About Cadillac 1940s Spark Plugs Parts
Ensure reliable ignition with quality spark plugs for your Cadillac 1940s. Spark plugs ignite the air-fuel mixture in your engine cylinders. Replace them according to your vehicle's maintenance schedule for optimal performance and fuel economy.
Why Shop Spark Plugs for Cadillac 1940s?
- Genuine OEM and high-quality aftermarket options available
- Competitive pricing from verified eBay sellers
- Fast shipping options with buyer protection
- Easy returns and seller ratings for peace of mind
Technical Information
Modern iridium and platinum plugs offer extended service life compared to traditional copper plugs.
Available Types
- Copper
- Platinum
- Double platinum
- Iridium
Key Benefits
- Improved fuel efficiency
- Smoother idle
- Better acceleration
- Reduced emissions
Warning Signs to Watch For
- Rough idle
- Misfires
- Poor acceleration
- Increased fuel consumption
- Hard starting
Recommended Replacement Interval
Copper: 30,000 miles, Platinum: 60,000 miles, Iridium: 100,000 miles
Installation Information
This is a good DIY project for most skill levels.
Installation time may vary for Cadillac 1940s based on engine bay layout and accessibility.
Frequently Asked Questions
How do I find the right spark plugs for my Cadillac 1940s?
Verify compatibility using your Cadillac 1940s's VIN number, production year (2024-2026), and engine code. Check seller compatibility charts and cross-reference OEM part numbers when possible.
How often should I replace spark plugs on my Cadillac 1940s?
General guideline: Copper: 30,000 miles, Platinum: 60,000 miles, Iridium: 100,000 miles. However, driving conditions (city vs highway, climate, towing) affect replacement frequency. Inspect regularly and replace when warning signs appear.
Should I use OEM or aftermarket spark plugs for my Cadillac 1940s?
OEM parts guarantee exact Cadillac specifications and fitment. Quality aftermarket brands often meet or exceed OEM standards at lower prices. For warranty vehicles, check if aftermarket parts affect coverage.
What are signs that my Cadillac 1940s needs new spark plugs?
Common warning signs include: Rough idle, Misfires, Poor acceleration, Increased fuel consumption, Hard starting. If you notice any of these symptoms, inspect or replace the spark plugs promptly to prevent further damage.
Can I install spark plugs on my Cadillac 1940s myself?
Yes, this is typically a moderate DIY job taking 1-2 hours. Always consult your owner's manual and follow proper safety procedures.