Rotary Trimmer Head Fast Loading 375 LH

📌 General Specs
Type: Fast-loading trimmer head (Speed-Feed / bump-type style)
Part Number: 13375 (also referenced as 27-13375)
Thread Direction: Left-hand thread — screws onto trimmer with LH threading
Diameter: 3-3⁄4 inches (approx. 95 mm) overall head width
📏 Line & Capacity
Line Capacity: Holds about 10 feet of .095″ line
Compatible Line Diameters:
• .080″
• .095″
• .105″
(Works with common nylon trimmer line sizes)
🔧 Fitment & Adapters
Includes Adapters for: multiple shaft/thread sizes — common fitting kits:
• Female adapters: 8 mm × 1.25, 10 mm × 1.0, 10 mm × 1.25
• Male adapters: 7 mm × 1.0, 8 mm × 1.25, 10 mm × 1.25
(Allows mounting on a variety of small straight-shaft and some curved-shaft trimmers)
🛠️ Design & Use
Fast Loading: “Speed-Feed” style — load and advance line by tapping the head on the ground rather than winding a spool manually
Eyelets: Large, durable line eyelets to enhance line life
Internal Design: Inner wall reduces dirt entering the head for smoother operation & longevity
🔁 Replaces / Equivalent Parts
OEM Equivalent: Replaces Shindaiwa part 78890-18001
Often cross-referenced with similar “Speed Feed 375” type heads from other brands