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Champion Spark Plug 851
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Champion Spark Plug 851

CHAMPION
ELE2043
In stock
$7.03 $5.99
Description The Champion Spark Plug 851 (DJ6J) is a dependable OE-type replacement spark plug designed for...
$5.99
Champion Spark Plug 851
Description

Description

The Champion Spark Plug 851 (DJ6J) is a dependable OE-type replacement spark plug designed for reliable ignition performance in small engine applications. It features a copper core center electrode for improved conductivity and heat control, helping reduce fouling and extend plug life.

With a tapered seat design (no washer required), this plug provides a secure seal in compatible engines. Its compact hex size and shorter reach make it ideal for many older chainsaws, trimmers, and small engine equipment. Built to ISO and SAE standards, it delivers consistent performance and durability.

Features

  • OE-type replacement spark plug
  • Champion Copper Plus Small Engine classification
  • Dependable performance and durability
  • Copper core center electrode for improved conductivity and heat control
  • Resists fouling
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance

Specifications

  • Plug type: DJ6J
  • Part description: Spark Plug
  • Grade type: Standard Replacement
  • Center electrode tip material: Nickel
  • Center electrode design: Standard
  • Center electrode diameter: 0.094 in.
  • Ground electrode quantity: 1
  • Ground electrode tip material: Nickel
  • Ground electrode core material: Nickel
  • Ground electrode material: Nickel Copper Alloy
  • Pre-gap size: 0.025 in. / 0.64 mm
  • Hex size: 0.625 in. / 15.880 mm
  • Manufacturer heat range: 6
  • Seat type: Tapered (no washer)
  • Reach: 0.307 in.
  • Thread diameter: 0.551 in. / 14.000 mm
  • Resistor type: No
  • Electrical terminal type: Non-Removable Nut
  • Hex type: Hex
  • Washer included: No
  • Indexed: No
  • Installed height: 1.45 in.
  • Taper diameter: 0.34 in.
  • Subject to Prop 65: No

Vehicle & Equipment Fitment

Compatible Brands and Models (Partial List)

McCulloch

  • Pro Mac 800, 850, 8200
  • Pro Mac 3800
  • Mac 10 Series (4-10, 5-10)
  • 5-10A, 5-10G, 6-10, 6-10A, 7-10A
  • SP40, SP60, SP80, SP81, SP105
  • CP-70, CP-70L, CP-125, CP-125S
  • LG-6, G-70, PM-60

Homelite

  • XL-Mini, XL-Mini-Auto
  • Super EZ, Super EZ-AO
  • EZ, Mini Model
  • 450, 550, DM50

Roper

  • ProAm 412, 414, 415
  • C6117, C6257, C6257AR, C6367, C6367AR, C11047, C12147

Craftsman

  • 1.9 Beaver
  • 2.5
  • 3.5
  • 4.5

Massey-Ferguson

  • 190, 190A, 250

Jobu

  • LF50, LP6

Root

  • C110, C121

Spintrim

  • Base models

Lear

  • Base

Tanaka

  • Bumble Bee

Evans

  • All models
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Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

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