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Champion Copper Plus Spark Plug (RDZ19H): Dependable Performance & Durability
30 day warranty
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Product Information
Product Details
Part No. 940
Warranty Details (30 Day Warranty)
Copper Plus Spark Plug RDZ19H delivers dependable performance and durability, making it an ideal OE-type replacement for your vehicle. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. The nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring reliable ignition under various conditions. Built to ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, making it a trustworthy choice for long-term use. Its tapered seat design and integrated resistor further optimize functionality, providing smooth operation and compatibility with a wide range of vehicles.
Product Features:
Product Features:
- Copper Plus - Dependable Performance and Durability
- OE type replacement plug
- Resists fouling
- Copper core center electrode allows for accurate control of heat range for longer life
- Superior corrosion resistance
- Built to ISO and SAE standards for proven performance
Specifications
Center Electrode Design:
Standard
Center Electrode Diameter (Inch):
0.052 in
Center Electrode Tip Material:
Nickel
Core Nose Length:
0.660 in
Electrical Terminal Type:
Non-Removable Nut
Gap Style:
J Gap
Grade Type:
Standard Replacement
Ground Electrode Core Material:
Nickel
Ground Electrode Material:
Nickel Copper Alloy
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
J Gap
Ground Electrode Tip Material:
Nickel
Hex Size:
0.625 in
Hex Type:
Hex
Indexed:
No
Installed Height (Inch):
1.45 in
Insulator Height:
0.03 in
Manufacturer Heat Range:
19
Part Description:
Spark Plug
Pre-Gap Size:
0.025 in
Reach:
0.5 in
Resistor Type:
Yes
Seat Type:
Tapered
Thread Diameter:
0.394 in
Washer(s) Included:
No
4.81 out of 5
751 Customer Reviews
95% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
660
4 Stars
66
3 Stars
11
2 Stars
2
1 Star
12
Pros
36
Easy To Install
36
Improves Engine Efficiency
22
Durable
21
Increases Power
5
Lightweight
Cons
4
Difficult To Install
3
none
2
None
1
No Improvement In Performance
1
NA
Best Uses
39
Everyday Driving
38
Replacement
12
Restoration
9
Performance Driving
3
Racing
Car & Truck
15
Auto Enthusiast
13
Casual Driver
6
Mechanic
6
Truck Enthusiast
1
Car
Describe Yourself
8
Auto Enthusiast
8
Casual Driver
8
Mechanic
2
Competitive Driver
1
Truck Enthusiast
Most Liked Positive Review
Only trust champion in my Mopars
I only use Champion spark plugs in my Mopars and always will. Great plug for a great price.
Most Liked Negative Review
Don't Trust an On-Line Order
Made this an on-line order for four (4) spark plugs; waited about one hour and went to store for parts pick-up. They handed me a pack of the WRONG spark plugs. Waited until the guy actually found the correct ones, BUT they only had three (the on-line computer system said they had four.) Get this--since the order was "on line," it was not yet 'fully processed,' so the Parts Clerk was unable to re-write the order for 3 plugs, nor give me a credit. Waited in the store until the on-line order was FINALIZED. Wasted much time and after a while I said: "Look, just cancel the whole order, and I'll pay cash for the three plus you've got." This resulted in me LOOSING my cool 25% discount. What a colossal PITA!
Reviewed by 751 Customers
Only trust champion in my Mopars
I only use Champion spark plugs in my Mopars and always will. Great plug for a great price.
Bottom Line Yes, I would recommend to a friend
Thunder Under hood
Verified Buyer -
Good plugs like copper for better electrical charge transfer from wires to spark plug tip
Perfect for Toro Super Recycler mower
This spark plug fit my Toro super recycler 20384 as a replacement for Toro part 121-4199. Sales team provided excellent service, ordering the part from CT for next day store pickup.
Bottom Line Yes, I would recommend to a friend
The Right Spark Plug for Marine Use.
I use only this Champion QL78YC marine spark plug in my 1999 Johnson 130HP outboard motor! My motor is 22 years old and runs like a dream with these plugs! I run around 500 miles each year and a set of plugs lasts the entire season. I have never had a bad spark plug nor any on-water incidents using these plugs. Excellent Quality and burn evenly, i.e., consistently. If your Motor Manual calls for this Champion product, do not use a substitute and you be rewarded with outstanding power and consistency.
Bottom Line Yes, I would recommend to a friend
H12 Spark Plugs
Verified Buyer -
The best spark plugs for the old Ford tractor!
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