Exmark 103-6403-S 20.5 Inch Notched Blade for 60 Inch Decks OEM
Achieve a clean, professional cut across a wide range of mowing conditions with the genuine Exmark 103-6403-S Notched Blade. Designed for compatible Exmark 60-inch mower decks, this 20.5-inch OEM blade uses a notched profile to generate the airflow needed to lift grass and discharge clippings efficiently. As a versatile factory-style blade, it is an excellent choice for most common grass conditions.
Fits Select Exmark Mowers with 60 Inch Decks
This OEM notched blade fits select Exmark Front Runner, Lazer Z, Pioneer, Radius, Staris, Turf Ranger, Turf Tracer, Vantage, and Vertex models. Use the fitment list below to verify compatibility with your specific model and serial number.
View Complete Fitment List (238 Models)
Front Runner Decks
- FRONT RUNNER DECKS – FR524 – Serial 600000-789999
- FRONT RUNNER DECKS – FR604 – Serial 600000-789999
- FRONT RUNNER DECKS – FR724 – Serial 670000-789999
Lazer Z
- LAZER Z – LAS23KC524 – Serial 600000-669999
- LAZER Z – LAS25KC604 – Serial 600000-789999
- LAZER Z – LAS25KC604B – Serial 670000-719999
- LAZER Z – LAS25KC604N – Serial 720000-789999
- LAZER Z – LAS28KA524 – Serial 670000-789999
- LAZER Z – LAS28KA524R – Serial 720000-789999
- LAZER Z – LAS28KA604 – Serial 670000-789999
- LAZER Z – LAS28KA724 – Serial 670000-789999
- LAZER Z – LAS28KA724B – Serial 670000-719999
- LAZER Z – LAS28KA724N – Serial 720000-789999
- LAZER Z – LCT18BV483 – Serial 600000-789999
- LAZER Z – LCT21BV523 – Serial 600000-789999
- LAZER Z – LCT23BV523 – Serial 720000-789999
- LAZER Z – LCT23BV603 – Serial 600000-789999
- LAZER Z – LRE730GKA604A3 – Serial 417930746-420130747
- LAZER Z – LRE801GKA604A3 – Serial 417930746-420130747
- LAZER Z – LRE810GBV604A3 – Serial 417930746-420130746
- LAZER Z – LRE921GKA604A3 – Serial 417930746-420130746
- LAZER Z – LRS749AKC604A1 – Serial 417930746-420130747
- LAZER Z – LRS801GKA604A1 – Serial 417930746-420130747
- LAZER Z – LRS801GKA60RA1 – Serial 417930746-420130747
- LAZER Z – LRX801GKA606Q1 – Serial 417930746-420130747
- LAZER Z – LRX820AKA606Q1 – Serial 417930746-420130747
- LAZER Z – LRX921GKA606Q1 – Serial 417930746-420130747
- LAZER Z – LRX980EKC606Q1 – Serial 417930746-420130746
- LAZER Z – LRX993EBX606Q1 – Serial 417930746-420130746
- LAZER Z – LZ23KC524AS – Serial 540000-599999
- LAZER Z – LZ23KC604 – Serial 540000-599999
- LAZER Z – LZ25KC524 – Serial 540000-599999
- LAZER Z – LZ25KC604 – Serial 540000-599999
- LAZER Z – LZ25KC604AS – Serial 540000-599999
- LAZER Z – LZ27DD604 – Serial 540000-599999
- LAZER Z – LZ27DD724 – Serial 540000-599999
- LAZER Z – LZ27KC524 – Serial 540000-599999
- LAZER Z – LZ27KC604 – Serial 540000-599999 and 720000
- LAZER Z – LZ27KC724 – Serial 540000-599999
- LAZER Z – LZ27LKA604 – Serial 540000-599999
- LAZER Z – LZ27LKA724 – Serial 540000-599999
- LAZER Z – LZ31BV604 – Serial 540000-599999
- LAZER Z – LZ31BV724 – Serial 540000-599999
- LAZER Z – LZA20KAS484 – Serial 850000-919999
- LAZER Z – LZA20KAX484 – Serial 850000-919999
- LAZER Z – LZA20KAX524 – Serial 850000-919999
- LAZER Z – LZA27KC604 – Serial 820000-919999
- LAZER Z – LZAS20BV484 – Serial 790000-849999
- LAZER Z – LZAS20KC484 – Serial 790000-849999
- LAZER Z – LZAS22KA484 – Serial 850000-919999
- LAZER Z – LZAS22KA484CA – Serial 850000-919999
- LAZER Z – LZAS23KC524 – Serial 790000-919999
- LAZER Z – LZAS25KC604 – Serial 790000-919999
- LAZER Z – LZAS26LKA604 – Serial 790000-919999
- LAZER Z – LZAS27KC524 – Serial 790000-919999
- LAZER Z – LZAS27KC524CA – Serial 850000-919999
- LAZER Z – LZAS27KC604 – Serial 790000-919999
- LAZER Z – LZAS27KC604CA – Serial 820000-919999
- LAZER Z – LZAS29KA604LP – Serial 850000-919999
- LAZER Z – LZAS29KA724 – Serial 790000-919999
- LAZER Z – LZAS29KA724LP – Serial 850000-919999
- LAZER Z – LZDS902K60RD – Serial 314000000-314999999
- LAZER Z – LZE27KC604 – Serial 920000-999999
- LAZER Z – LZE730GKA604A3 – Serial 315000000-399999999
- LAZER Z – LZE730GKA604B3 – Serial 315000000-315999999
- LAZER Z – LZE730GKA60RA1 – Serial 315000000-315999999
- LAZER Z – LZE730KA604 – Serial 313000000-314999999
- LAZER Z – LZE730KA604SS – Serial 314000000-314999999
- LAZER Z – LZE740EKC604 – Serial 312000000-314999999
- LAZER Z – LZE740EKC60400 – Serial 315000000-411294211
- LAZER Z – LZE740EKC604A3 – Serial 315000000-315999999
- LAZER Z – LZE740KC604 – Serial 312000000-313999999
- LAZER Z – LZE740KC604L – Serial 312000000-312999999
- LAZER Z – LZE742GKC60400 – Serial 315000000-315999999
- LAZER Z – LZE742GKC60403 – Serial 315000000-315999999
- LAZER Z – LZE742GKC604A3 – Serial 315000000-417930745
- LAZER Z – LZE742GKC604B1 – Serial 316000000-399999999
- LAZER Z – LZE742GKC604C1 – Serial 400000000-402082299
- LAZER Z – LZE742KC604 – Serial 314000000-314999999
- LAZER Z – LZE751CKA604A1 – Serial 400000000-411294211
- LAZER Z – LZE751GKA604A1 – Serial 400000000-411294211
- LAZER Z – LZE751GKA604C1 – Serial 400000000-411294211
- LAZER Z – LZE751GKA60RA1 – Serial 400000000-406294344
- LAZER Z – LZE801CKA604A1 – Serial 411294212-416150474
- LAZER Z – LZE801GKA604A1 – Serial 408644346-411294211 and 416150475-417930745
- LAZER Z – LZE801GKA604A3 – Serial 316000000-399999999
- LAZER Z – LZE801GKA604B1 – Serial 316000000-399999999
- LAZER Z – LZE801GKA604C1 – Serial 400000000-402082299 and 416150475-417930745
- LAZER Z – LZE801GKA60RA1 – Serial 316000000-399999999
- LAZER Z – LZE810GBV604A3 – Serial 411294212-416150475
- LAZER Z – LZS25EKC604 – Serial 920000-999999
- LAZER Z – LZS25KC604 – Serial 920000-999999
- LAZER Z – LZS27KC604 – Serial 920000-999999
- LAZER Z – LZS27KC604CA – Serial 920000-999999
- LAZER Z – LZS27KC604SS – Serial 920000-999999
- LAZER Z – LZS29PKA604 – Serial 920000-999999
- LAZER Z – LZS730EKC604 – Serial 312000000-312999999
- LAZER Z – LZS740EKC60RD – Serial 314000000-314999999
- LAZER Z – LZS740EKC60RS – Serial 314000000-314999999
- LAZER Z – LZS740KC604 – Serial 312000000-313999999
- LAZER Z – LZS740KC604CA – Serial 312000000-312999999
- LAZER Z – LZS740PKC604 – Serial 313000000-314999999
- LAZER Z – LZS740PKC60400 – Serial 315000000-316999999 and 400000000-408644345
- LAZER Z – LZS742CKC60400 – Serial 315000000-315999999
- LAZER Z – LZS742KC604 – Serial 314000000-314999999
- LAZER Z – LZS749AKC604A1 – Serial 316000000-316999999 and 400000000-417930745
- LAZER Z – LZS749EKC604 – Serial 313000000-314999999
- LAZER Z – LZS749EKC60400 – Serial 315000000-315999999
- LAZER Z – LZS749EKC604A1 – Serial 315000000-315999999
- LAZER Z – LZS749EKC604SS – Serial 312000000-312999999 and 314000000-314999999
- LAZER Z – LZS801CKA60RA1 – Serial 406294345-416150474
- LAZER Z – LZS801GKA60400 – Serial 315000000-315999999
- LAZER Z – LZS801GKA604A1 – Serial 315000000-316999999 and 400000000-411294211
- LAZER Z – LZS801GKA60RA1 – Serial 416150475-417930745
- LAZER Z – LZS801KA604 – Serial 313000000-314999999
- LAZER Z – LZS801KA604SS – Serial 312000000-312999999 and 314000000-314999999
- LAZER Z – LZS801PKA604 – Serial 312000000-312999999
- LAZER Z – LZS80TDYM604W0 – Serial 402082300-420130746
- LAZER Z – LZS850EKA604W0 – Serial 402082300-411294211
- LAZER Z – LZS88CDYM604W0 – Serial 402082300-404314158
- LAZER Z – LZS902DKU60R00 – Serial 315000000-402082299
- LAZER Z – LZX27KC606 – Serial 920000-999999
- LAZER Z – LZX27KC606CA – Serial 920000-999999
- LAZER Z – LZX29EKC606 – Serial 920000-999999
- LAZER Z – LZX29EKC606CA – Serial 920000-999999
- LAZER Z – LZX29EKC606SS – Serial 920000-999999
- LAZER Z – LZX29KA606 – Serial 920000-999999
- LAZER Z – LZX29KA606SS – Serial 920000-999999
- LAZER Z – LZX29PKA606 – Serial 920000-999999
- LAZER Z – LZX34KC606 – Serial 920000-999999
- LAZER Z – LZX34KC606SS – Serial 920000-999999
- LAZER Z – LZX38KC606 – Serial 920000-999999
- LAZER Z – LZX38KC606CA – Serial 920000-999999
- LAZER Z – LZX38KC606SS – Serial 920000-999999
- LAZER Z – LZX740KC606 – Serial 312000000-312999999
- LAZER Z – LZX740KC606CA – Serial 312000000-312999999
- LAZER Z – LZX749EKC606 – Serial 312000000-312999999
- LAZER Z – LZX801CKA60600 – Serial 400000000-404314158
- LAZER Z – LZX801CKA606C1 – Serial 400000000-416150474
- LAZER Z – LZX801GKA60600 – Serial 315000000-411294211
- LAZER Z – LZX801GKA606A1 – Serial 411294212-416150474
- LAZER Z – LZX801GKA606B1 – Serial 315000000-399999999
- LAZER Z – LZX801GKA606C1 – Serial 400000000-402082299
- LAZER Z – LZX801GKA606Q1 – Serial 416150475-417930745
- LAZER Z – LZX801KA606 – Serial 312000000-314999999
- LAZER Z – LZX801KA606SS – Serial 312000000-312999999
- LAZER Z – LZX820AKA606Q1 – Serial 416150475-417930745
- LAZER Z – LZX921GKA60600 – Serial 315000000-411294211
- LAZER Z – LZX921GKA606A1 – Serial 411294212-413950473
- LAZER Z – LZX921GKA606A5 – Serial 408644346-411294211
- LAZER Z – LZX921GKA606C1 – Serial 416150475-417930745
- LAZER Z – LZX921GKA606Q1 – Serial 413950474-417930745
- LAZER Z – LZX921KA606 – Serial 314000000-314999999
- LAZER Z – LZX940AKC606T0 – Serial 315000000-315999999
- LAZER Z – LZX940EKC606 – Serial 313000000-314999999
- LAZER Z – LZX940EKC60600 – Serial 316000000-402082299
- LAZER Z – LZX940EKC606T0 – Serial 315000000-402082299
- LAZER Z – LZX940EKC606W0 – Serial 400000000-408644345
- LAZER Z – LZX940EKC60RT0 – Serial 316000000-402082299
- LAZER Z – LZX940EKC60RW0 – Serial 402082300-406294344
- LAZER Z – LZX940KC606 – Serial 312000000-312999999
- LAZER Z – LZX980EKC606R1 – Serial 411294211-413950474 and 416150475-417930745
- LAZER Z – LZX980EKC606W0 – Serial 406294345-413950473
- LAZER Z – LZX980KC606 – Serial 312000000-313999999
- LAZER Z – LZX993EBV606X1 – Serial 411294212-416150474
- LAZER Z – LZZ23KA526 – Serial 790000-849999
- LAZER Z – LZZ23KC486 – Serial 790000-919999
- LAZER Z – LZZ23KC526 – Serial 790000-919999
- LAZER Z – LZZ24KA526 – Serial 850000-919999
- LAZER Z – LZZ24KA526CA – Serial 850000-919999
- LAZER Z – LZZ27KC526 – Serial 790000-919999
- LAZER Z – LZZ27KC526CA – Serial 850000-919999
- LAZER Z – LZZ27KC606 – Serial 790000-919999
- LAZER Z – LZZ27KC606CA – Serial 850000-919999
- LAZER Z – LZZ29KA606 – Serial 790000-919999
- LAZER Z – LZZ29KA606LP – Serial 850000-919999
- LAZER Z – LZZ29KCE606 – Serial 850000-919999
- LAZER Z – LZZ34KA606 – Serial 790000-919999
- LAZER Z – LZZ34KA726 – Serial 790000-919999
- LAZER Z – LZZ34KC606 – Serial 850000-919999
- LAZER Z – LZZ34KC726 – Serial 850000-919999
- LAZER Z – LZZ38KC606 – Serial 850000-919999
- LAZER Z – LZZ38KC726 – Serial 850000-919999
Lazer Z EFI
- LAZER Z EFI – LZ28KC604 – Serial 540000-599999
- LAZER Z EFI – LZ28KC724 – Serial 540000-599999
Pioneer
- PIONEER – PNS730GKA604A3 – Serial 315000000-399999999
- PIONEER – PNS730KA604 – Serial 314000000-314999999
- PIONEER – PNS740GKC60400 – Serial 315000000-399999999
- PIONEER – PNS740GKC604A4 – Serial 315000000-399999999
- PIONEER – PNS740GKC60RA3 – Serial 315000000-399999999
- PIONEER – PNS740KC604 – Serial 312000000-314999999
- PIONEER – PNS740KC604SS – Serial 312000000-312999999 and 314000000-314999999
Radius
- RADIUS – RAE708GEM60300 – Serial 400000000-413950473
- RADIUS – RAE740CKC60300 – Serial 406294345-411294211
- RADIUS – RAS708GEM603C3 – Serial 402082300-408644345
- RADIUS – RAS708GEM60RC3 – Serial 402082300-408644345
- RADIUS – RAS730GKA603A3 – Serial 408644346-413950473
- RADIUS – RAS730GKA60RA3 – Serial 408644346-413950473
- RADIUS – RAS740CKC60300 – Serial 400000000-402082299
- RADIUS – RAS740GKC60300 – Serial 400000000-402082299
- RADIUS – RAS740GKC60R00 – Serial 400000000-402082299
- RADIUS – RAX730GKA604A3 – Serial 400000000-411294211
- RADIUS – RAX921GKA604A3 – Serial 411294212-413950473
- RADIUS – RDS730GKA603A3 – Serial 420130747-420192253
- RADIUS – RDX730GKA604A3 – Serial 420130747
- RADIUS – RZE708GEM60300 – Serial 413950474-420130746
- RADIUS – RZE724GKC60300 – Serial 417930746-420130746
- RADIUS – RZS730GKA603A3 – Serial 413950474-420130746
- RADIUS – RZX921GKA604A3 – Serial 413950474-417930745
Staris
- STARIS – STS730GKA60400 – Serial 404314159-408644345
- STARIS – STS740EKC60400 – Serial 404314159-408644345
Turf Ranger
- TURF RANGER – TR23KC – Serial 510000-599999
Turf Tracer
- TURF TRACER – TT20KCC – Serial 510000-539999
- TURF TRACER – TT23KAC – Serial 510000-599999
- TURF TRACER – TT23KCC – Serial 510000-539999
- TURF TRACER – TTA749AKC604N0 – Serial 417930746-420130746
- TURF TRACER – TTX650EKC60400 – Serial 315000000-416150474
- TURF TRACER – TTX650EKC604N0 – Serial 315000000-417930745
- TURF TRACER – TTX650EKCE604 – Serial 313000000-314999999
- TURF TRACER – TTX650EKCE604N – Serial 313000000-314999999
- TURF TRACER – TTX680PKC60400 – Serial 315000000-408644345
- TURF TRACER – TTX680PKCE604 – Serial 313000000-314999999
- TURF TRACER – TTX691CKA60400 – Serial 315000000-411294211 and 413950474-416150474
- TURF TRACER – TTX691GKA60400 – Serial 416150475-420130747
- TURF TRACER – TTX691KAE604 – Serial 313000000-314999999
- TURF TRACER – TTX691KAE604CA – Serial 313000000-313999999
- TURF TRACER – TTX730EKC60400 – Serial 416150475-420130747
- TURF TRACER – TTX730EKC604N0 – Serial 416150475-420130747
Vantage
- VANTAGE – VT740EKC604 – Serial 312000000-312999999
- VANTAGE – VTS740EKC604 – Serial 313000000-314999999
- VANTAGE – VTS740EKC60400 – Serial 315000000-404314158
- VANTAGE – VTS740PKC60400 – Serial 316000000-499999999
- VANTAGE – VTX740EKC604 – Serial 313000000-314999999
- VANTAGE – VTX740EKC60400 – Serial 315000000-499999999
Vertex
- VERTEX – VXS730GKA60400 – Serial 411294212-420130747
- VERTEX – VXS740EKC60400 – Serial 411294212-420130747
- VERTEX – VXX999EKA60600 – Serial 416150475-420130747
- VERTEX – VXX999GKA60600 – Serial 416150475-420130747
Exmark 20.5 Inch Factory Notched Blade Replacement
The Exmark 103-6403-S is a genuine OEM 20.5-inch notched mower blade designed for compatible Exmark 60-inch mower decks. As a versatile factory-style blade, it provides dependable cutting and discharge performance across approximately 80% of common grass conditions.
Compatible 60-inch mower decks commonly use three blades. This listing is for one individual blade unless the product quantity states otherwise.
Product Details
- Genuine Exmark OEM Mower Blade
- Part Number: 103-6403-S
- Blade Length: 20.5 Inches
- Blade Type: Standard Notched Blade
- Designed for compatible 60-inch mower decks
- Versatile factory-style blade for most grass conditions
- Raises grass for an even, consistent cut
- Supports efficient clipping discharge
- Heat-treated, high-carbon steel construction
- Manufactured for proper balance and deck clearance
- Built to Exmark factory specifications
- Sold individually unless otherwise stated
Versatile Cutting Performance
The notched blade profile generates airflow beneath the mower deck to lift grass into the cutting path and move clippings away after they are cut. This balanced design makes the Exmark 103-6403-S a versatile choice for routine mowing across a wide range of common turf and grass conditions.
Sharpen the blade as needed and inspect it regularly for excessive wear, cracks, bends, or deep nicks. A damaged or unbalanced blade can reduce cut quality, create vibration, and place unnecessary stress on spindle assemblies and other mower-deck components.
Why Choose Genuine Exmark OEM Blades?
Genuine Exmark blades are engineered to provide the correct length, cutting profile, balance, mounting dimensions, and deck clearance for compatible Exmark equipment. Using the specified OEM blade helps maintain proper airflow, cutting quality, and safe mower-deck operation.
Important: Verify your model, serial number, deck size, mounting-hole dimensions, and required blade quantity before ordering. Exmark frequently uses different blades across similar mower models and deck configurations, and fitment can vary by serial number.
Genuine Exmark Parts
Genuine Exmark OEM parts are built for commercial performance. Engineered to factory specifications, they deliver precise fit, long lasting durability, and the reliability professionals depend on. Protect your investment and minimize downtime with parts designed specifically for your Exmark machine.
Get Everything You Need
View the complete parts diagram for your machine. Find related maintenance items, replacement parts, and hardware before placing your order.
