Free shipping on orders over $250* (855) 256-8566 Spend $25k a year, take 2% off — up to 5%
John Deere M378T M378T: Speed Nut, 4.775 mm (3/16") — OEM replacement part
Watch Video
M378T Genuine OEM · John Deere

John Deere M378T: Speed Nut Hardware — 4.775 mm (3/16")

Shop all John Deere parts

$1.95
Choose your location
Delivery
Get it by Tuesday, November 10
Free delivery on orders $250+*
Check fit for your equipment
Confirm this part matches your model before you buy.
  • Free & easy returns · 30 days
  • Fulfilled by Everglades Equipment Group · Certified John Deere dealer
  • Talk to a parts specialist

Part details

About this item

Details

Part number
M378T
Brand
John Deere · Genuine OEM
Category
Nuts & Washers
Type
John Deere Hardware
Condition
New · 1-year warranty
Fulfillment
Ship to home · Store pickup
Freight required
No — ships parcel
Dimensions
0.7" × 0.4" × 0.1"
Shipping & returns policy
  • Free shipping* on orders over $250 · in-stock orders typically arrive within 2-3 business days
  • Expedited shipping available at checkout
  • 30-day returns on unused items · 25% restocking fee may apply
  • Electrical & special-order items non-returnable

Description

Speed Nut designed for secure fastening in various applications || Key specifications include a diameter of 4.78 mm (0.19 in) and a thickness of 0.30 mm (0.01 in), ideal for precise fitting || Constructed from durable steel for reliable performance || Heat-treated finish ensures long-lasting durability and resistance to wear
  • genuine John Deere OEM part
  • engineered to exact specifications
  • Shipping weight: 1 lb

Verified fitment

Fits 20 models

See all 20 models

Your history

Recently viewed

Pulley

$49.36

Pulley

John Deere · DX14007
Pulley

$61.72

Pulley

John Deere · DX15260
Washer

$3.44

Washer

John Deere · R463R
Briggs & Stratton 5420289BFS Frame Assembly

$78.76

Briggs & Stratton 5420289BFS Frame Assembly

Briggs & Stratton · 5420289BFS
FRAME

$296.79

FRAME

Briggs & Stratton · 706911
Bolt, Connecting Rod

$4.68

Bolt, Connecting Rod

A&I Products · A-R501124

$1.95

M378T

Added to Cart!

Complete Your Repair

Frequently bought together

Not sure if it fits?

Chat with our parts team

Subtotal
View Cart & Checkout
Secure
30-Day Returns
Support

We use cookies to analyze site traffic and improve your experience. Declining won't affect site functionality. See our Privacy Policy.